root / HServer / 00.Server / 00.Program / node_modules / is / index.js
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| 1 | 39 | HKM | |
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| 2 | /**!
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| 3 | * is
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| 4 | * the definitive JavaScript type testing library
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| 5 | *
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| 6 | * @copyright 2013 Enrico Marino
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| 7 | * @license MIT
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| 8 | */
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| 9 | |||
| 10 | var objProto = Object.prototype;
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| 11 | var owns = objProto.hasOwnProperty;
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| 12 | var toString = objProto.toString;
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| 13 | var isActualNaN = function (value) { |
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| 14 | return value !== value;
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| 15 | }; |
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| 16 | var NON_HOST_TYPES = {
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| 17 | "boolean": 1, |
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| 18 | "number": 1, |
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| 19 | "string": 1, |
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| 20 | "undefined": 1 |
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| 21 | }; |
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| 22 | |||
| 23 | /**
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| 24 | * Expose `is`
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| 25 | */
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| 26 | |||
| 27 | var is = module.exports = {};
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| 28 | |||
| 29 | /**
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| 30 | * Test general.
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| 31 | */
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| 32 | |||
| 33 | /**
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| 34 | * is.type
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| 35 | * Test if `value` is a type of `type`.
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| 36 | *
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| 37 | * @param {Mixed} value value to test
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| 38 | * @param {String} type type
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| 39 | * @return {Boolean} true if `value` is a type of `type`, false otherwise
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| 40 | * @api public
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| 41 | */
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| 42 | |||
| 43 | is.a = |
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| 44 | is.type = function (value, type) { |
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| 45 | return typeof value === type; |
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| 46 | }; |
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| 47 | |||
| 48 | /**
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| 49 | * is.defined
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| 50 | * Test if `value` is defined.
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| 51 | *
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| 52 | * @param {Mixed} value value to test
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| 53 | * @return {Boolean} true if 'value' is defined, false otherwise
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| 54 | * @api public
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| 55 | */
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| 56 | |||
| 57 | is.defined = function (value) { |
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| 58 | return value !== undefined; |
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| 59 | }; |
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| 60 | |||
| 61 | /**
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| 62 | * is.empty
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| 63 | * Test if `value` is empty.
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| 64 | *
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| 65 | * @param {Mixed} value value to test
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| 66 | * @return {Boolean} true if `value` is empty, false otherwise
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| 67 | * @api public
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| 68 | */
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| 69 | |||
| 70 | is.empty = function (value) { |
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| 71 | var type = toString.call(value);
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| 72 | var key;
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| 73 | |||
| 74 | if ('[object Array]' === type || '[object Arguments]' === type) { |
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| 75 | return value.length === 0; |
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| 76 | } |
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| 77 | |||
| 78 | if ('[object Object]' === type) { |
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| 79 | for (key in value) if (owns.call(value, key)) return false; |
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| 80 | return true; |
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| 81 | } |
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| 82 | |||
| 83 | if ('[object String]' === type) { |
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| 84 | return '' === value; |
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| 85 | } |
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| 86 | |||
| 87 | return false; |
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| 88 | }; |
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| 89 | |||
| 90 | /**
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| 91 | * is.equal
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| 92 | * Test if `value` is equal to `other`.
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| 93 | *
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| 94 | * @param {Mixed} value value to test
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| 95 | * @param {Mixed} other value to compare with
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| 96 | * @return {Boolean} true if `value` is equal to `other`, false otherwise
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| 97 | */
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| 98 | |||
| 99 | is.equal = function (value, other) { |
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| 100 | var type = toString.call(value)
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| 101 | var key;
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| 102 | |||
| 103 | if (type !== toString.call(other)) {
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| 104 | return false; |
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| 105 | } |
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| 106 | |||
| 107 | if ('[object Object]' === type) { |
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| 108 | for (key in value) { |
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| 109 | if (!is.equal(value[key], other[key])) {
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| 110 | return false; |
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| 111 | } |
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| 112 | } |
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| 113 | return true; |
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| 114 | } |
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| 115 | |||
| 116 | if ('[object Array]' === type) { |
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| 117 | key = value.length; |
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| 118 | if (key !== other.length) {
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| 119 | return false; |
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| 120 | } |
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| 121 | while (--key) {
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| 122 | if (!is.equal(value[key], other[key])) {
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| 123 | return false; |
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| 124 | } |
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| 125 | } |
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| 126 | return true; |
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| 127 | } |
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| 128 | |||
| 129 | if ('[object Function]' === type) { |
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| 130 | return value.prototype === other.prototype;
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| 131 | } |
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| 132 | |||
| 133 | if ('[object Date]' === type) { |
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| 134 | return value.getTime() === other.getTime();
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| 135 | } |
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| 136 | |||
| 137 | return value === other;
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| 138 | }; |
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| 139 | |||
| 140 | /**
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| 141 | * is.hosted
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| 142 | * Test if `value` is hosted by `host`.
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| 143 | *
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| 144 | * @param {Mixed} value to test
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| 145 | * @param {Mixed} host host to test with
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| 146 | * @return {Boolean} true if `value` is hosted by `host`, false otherwise
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| 147 | * @api public
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| 148 | */
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| 149 | |||
| 150 | is.hosted = function (value, host) { |
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| 151 | var type = typeof host[value]; |
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| 152 | return type === 'object' ? !!host[value] : !NON_HOST_TYPES[type]; |
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| 153 | }; |
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| 154 | |||
| 155 | /**
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| 156 | * is.instance
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| 157 | * Test if `value` is an instance of `constructor`.
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| 158 | *
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| 159 | * @param {Mixed} value value to test
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| 160 | * @return {Boolean} true if `value` is an instance of `constructor`
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| 161 | * @api public
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| 162 | */
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| 163 | |||
| 164 | is.instance = is['instanceof'] = function (value, constructor) { |
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| 165 | return value instanceof constructor; |
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| 166 | }; |
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| 167 | |||
| 168 | /**
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| 169 | * is.null
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| 170 | * Test if `value` is null.
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| 171 | *
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| 172 | * @param {Mixed} value value to test
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| 173 | * @return {Boolean} true if `value` is null, false otherwise
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| 174 | * @api public
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| 175 | */
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| 176 | |||
| 177 | is['null'] = function (value) { |
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| 178 | return value === null; |
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| 179 | }; |
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| 180 | |||
| 181 | /**
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| 182 | * is.undefined
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| 183 | * Test if `value` is undefined.
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| 184 | *
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| 185 | * @param {Mixed} value value to test
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| 186 | * @return {Boolean} true if `value` is undefined, false otherwise
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| 187 | * @api public
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| 188 | */
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| 189 | |||
| 190 | is.undefined = function (value) { |
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| 191 | return value === undefined; |
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| 192 | }; |
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| 193 | |||
| 194 | /**
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| 195 | * Test arguments.
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| 196 | */
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| 197 | |||
| 198 | /**
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| 199 | * is.arguments
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| 200 | * Test if `value` is an arguments object.
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| 201 | *
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| 202 | * @param {Mixed} value value to test
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| 203 | * @return {Boolean} true if `value` is an arguments object, false otherwise
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| 204 | * @api public
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| 205 | */
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| 206 | |||
| 207 | is.arguments = function (value) { |
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| 208 | var isStandardArguments = '[object Arguments]' === toString.call(value); |
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| 209 | var isOldArguments = !is.array(value) && is.arraylike(value) && is.object(value) && is.fn(value.callee);
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| 210 | return isStandardArguments || isOldArguments;
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| 211 | }; |
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| 212 | |||
| 213 | /**
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| 214 | * Test array.
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| 215 | */
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| 216 | |||
| 217 | /**
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| 218 | * is.array
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| 219 | * Test if 'value' is an array.
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| 220 | *
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| 221 | * @param {Mixed} value value to test
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| 222 | * @return {Boolean} true if `value` is an array, false otherwise
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| 223 | * @api public
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| 224 | */
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| 225 | |||
| 226 | is.array = function (value) { |
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| 227 | return '[object Array]' === toString.call(value); |
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| 228 | }; |
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| 229 | |||
| 230 | /**
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| 231 | * is.arguments.empty
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| 232 | * Test if `value` is an empty arguments object.
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| 233 | *
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| 234 | * @param {Mixed} value value to test
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| 235 | * @return {Boolean} true if `value` is an empty arguments object, false otherwise
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| 236 | * @api public
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| 237 | */
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| 238 | is.arguments.empty = function (value) { |
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| 239 | return is.arguments(value) && value.length === 0; |
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| 240 | }; |
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| 241 | |||
| 242 | /**
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| 243 | * is.array.empty
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| 244 | * Test if `value` is an empty array.
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| 245 | *
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| 246 | * @param {Mixed} value value to test
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| 247 | * @return {Boolean} true if `value` is an empty array, false otherwise
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| 248 | * @api public
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| 249 | */
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| 250 | is.array.empty = function (value) { |
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| 251 | return is.array(value) && value.length === 0; |
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| 252 | }; |
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| 253 | |||
| 254 | /**
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| 255 | * is.arraylike
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| 256 | * Test if `value` is an arraylike object.
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| 257 | *
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| 258 | * @param {Mixed} value value to test
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| 259 | * @return {Boolean} true if `value` is an arguments object, false otherwise
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| 260 | * @api public
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| 261 | */
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| 262 | |||
| 263 | is.arraylike = function (value) { |
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| 264 | return !!value && !is.boolean(value) |
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| 265 | && owns.call(value, 'length')
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| 266 | && isFinite(value.length) |
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| 267 | && is.number(value.length) |
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| 268 | && value.length >= 0;
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| 269 | }; |
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| 270 | |||
| 271 | /**
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| 272 | * Test boolean.
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| 273 | */
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| 274 | |||
| 275 | /**
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| 276 | * is.boolean
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| 277 | * Test if `value` is a boolean.
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| 278 | *
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| 279 | * @param {Mixed} value value to test
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| 280 | * @return {Boolean} true if `value` is a boolean, false otherwise
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| 281 | * @api public
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| 282 | */
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| 283 | |||
| 284 | is.boolean = function (value) { |
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| 285 | return '[object Boolean]' === toString.call(value); |
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| 286 | }; |
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| 287 | |||
| 288 | /**
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| 289 | * is.false
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| 290 | * Test if `value` is false.
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| 291 | *
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| 292 | * @param {Mixed} value value to test
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| 293 | * @return {Boolean} true if `value` is false, false otherwise
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| 294 | * @api public
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| 295 | */
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| 296 | |||
| 297 | is['false'] = function (value) { |
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| 298 | return is.boolean(value) && (value === false || value.valueOf() === false); |
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| 299 | }; |
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| 300 | |||
| 301 | /**
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| 302 | * is.true
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| 303 | * Test if `value` is true.
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| 304 | *
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| 305 | * @param {Mixed} value value to test
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| 306 | * @return {Boolean} true if `value` is true, false otherwise
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| 307 | * @api public
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| 308 | */
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| 309 | |||
| 310 | is['true'] = function (value) { |
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| 311 | return is.boolean(value) && (value === true || value.valueOf() === true); |
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| 312 | }; |
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| 313 | |||
| 314 | /**
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| 315 | * Test date.
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| 316 | */
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| 317 | |||
| 318 | /**
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| 319 | * is.date
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| 320 | * Test if `value` is a date.
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| 321 | *
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| 322 | * @param {Mixed} value value to test
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| 323 | * @return {Boolean} true if `value` is a date, false otherwise
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| 324 | * @api public
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| 325 | */
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| 326 | |||
| 327 | is.date = function (value) { |
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| 328 | return '[object Date]' === toString.call(value); |
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| 329 | }; |
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| 330 | |||
| 331 | /**
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| 332 | * Test element.
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| 333 | */
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| 334 | |||
| 335 | /**
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| 336 | * is.element
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| 337 | * Test if `value` is an html element.
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| 338 | *
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| 339 | * @param {Mixed} value value to test
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| 340 | * @return {Boolean} true if `value` is an HTML Element, false otherwise
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| 341 | * @api public
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| 342 | */
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| 343 | |||
| 344 | is.element = function (value) { |
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| 345 | return value !== undefined |
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| 346 | && typeof HTMLElement !== 'undefined' |
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| 347 | && value instanceof HTMLElement
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| 348 | && value.nodeType === 1;
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| 349 | }; |
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| 350 | |||
| 351 | /**
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| 352 | * Test error.
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| 353 | */
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| 354 | |||
| 355 | /**
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| 356 | * is.error
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| 357 | * Test if `value` is an error object.
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| 358 | *
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| 359 | * @param {Mixed} value value to test
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| 360 | * @return {Boolean} true if `value` is an error object, false otherwise
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| 361 | * @api public
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| 362 | */
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| 363 | |||
| 364 | is.error = function (value) { |
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| 365 | return '[object Error]' === toString.call(value); |
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| 366 | }; |
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| 367 | |||
| 368 | /**
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| 369 | * Test function.
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| 370 | */
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| 371 | |||
| 372 | /**
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| 373 | * is.fn / is.function (deprecated)
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| 374 | * Test if `value` is a function.
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| 375 | *
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| 376 | * @param {Mixed} value value to test
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| 377 | * @return {Boolean} true if `value` is a function, false otherwise
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| 378 | * @api public
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| 379 | */
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| 380 | |||
| 381 | is.fn = is['function'] = function (value) { |
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| 382 | var isAlert = typeof window !== 'undefined' && value === window.alert; |
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| 383 | return isAlert || '[object Function]' === toString.call(value); |
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| 384 | }; |
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| 385 | |||
| 386 | /**
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| 387 | * Test number.
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| 388 | */
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| 389 | |||
| 390 | /**
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| 391 | * is.number
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| 392 | * Test if `value` is a number.
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| 393 | *
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| 394 | * @param {Mixed} value value to test
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| 395 | * @return {Boolean} true if `value` is a number, false otherwise
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| 396 | * @api public
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| 397 | */
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| 398 | |||
| 399 | is.number = function (value) { |
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| 400 | return '[object Number]' === toString.call(value); |
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| 401 | }; |
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| 402 | |||
| 403 | /**
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| 404 | * is.infinite
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| 405 | * Test if `value` is positive or negative infinity.
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| 406 | *
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| 407 | * @param {Mixed} value value to test
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| 408 | * @return {Boolean} true if `value` is positive or negative Infinity, false otherwise
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| 409 | * @api public
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| 410 | */
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| 411 | is.infinite = function (value) { |
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| 412 | return value === Infinity || value === -Infinity; |
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| 413 | }; |
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| 414 | |||
| 415 | /**
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| 416 | * is.decimal
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| 417 | * Test if `value` is a decimal number.
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| 418 | *
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| 419 | * @param {Mixed} value value to test
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| 420 | * @return {Boolean} true if `value` is a decimal number, false otherwise
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| 421 | * @api public
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| 422 | */
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| 423 | |||
| 424 | is.decimal = function (value) { |
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| 425 | return is.number(value) && !isActualNaN(value) && !is.infinite(value) && value % 1 !== 0; |
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| 426 | }; |
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| 427 | |||
| 428 | /**
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| 429 | * is.divisibleBy
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| 430 | * Test if `value` is divisible by `n`.
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| 431 | *
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| 432 | * @param {Number} value value to test
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| 433 | * @param {Number} n dividend
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| 434 | * @return {Boolean} true if `value` is divisible by `n`, false otherwise
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| 435 | * @api public
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| 436 | */
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| 437 | |||
| 438 | is.divisibleBy = function (value, n) { |
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| 439 | var isDividendInfinite = is.infinite(value);
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| 440 | var isDivisorInfinite = is.infinite(n);
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| 441 | var isNonZeroNumber = is.number(value) && !isActualNaN(value) && is.number(n) && !isActualNaN(n) && n !== 0; |
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| 442 | return isDividendInfinite || isDivisorInfinite || (isNonZeroNumber && value % n === 0); |
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| 443 | }; |
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| 444 | |||
| 445 | /**
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| 446 | * is.int
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| 447 | * Test if `value` is an integer.
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| 448 | *
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| 449 | * @param value to test
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| 450 | * @return {Boolean} true if `value` is an integer, false otherwise
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| 451 | * @api public
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| 452 | */
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| 453 | |||
| 454 | is.int = function (value) { |
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| 455 | return is.number(value) && !isActualNaN(value) && value % 1 === 0; |
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| 456 | }; |
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| 457 | |||
| 458 | /**
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| 459 | * is.maximum
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| 460 | * Test if `value` is greater than 'others' values.
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| 461 | *
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| 462 | * @param {Number} value value to test
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| 463 | * @param {Array} others values to compare with
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| 464 | * @return {Boolean} true if `value` is greater than `others` values
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| 465 | * @api public
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| 466 | */
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| 467 | |||
| 468 | is.maximum = function (value, others) { |
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| 469 | if (isActualNaN(value)) {
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| 470 | throw new TypeError('NaN is not a valid value'); |
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| 471 | } else if (!is.arraylike(others)) { |
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| 472 | throw new TypeError('second argument must be array-like'); |
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| 473 | } |
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| 474 | var len = others.length;
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| 475 | |||
| 476 | while (--len >= 0) { |
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| 477 | if (value < others[len]) {
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| 478 | return false; |
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| 479 | } |
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| 480 | } |
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| 481 | |||
| 482 | return true; |
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| 483 | }; |
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| 484 | |||
| 485 | /**
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| 486 | * is.minimum
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| 487 | * Test if `value` is less than `others` values.
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| 488 | *
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| 489 | * @param {Number} value value to test
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| 490 | * @param {Array} others values to compare with
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| 491 | * @return {Boolean} true if `value` is less than `others` values
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| 492 | * @api public
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| 493 | */
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| 494 | |||
| 495 | is.minimum = function (value, others) { |
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| 496 | if (isActualNaN(value)) {
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| 497 | throw new TypeError('NaN is not a valid value'); |
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| 498 | } else if (!is.arraylike(others)) { |
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| 499 | throw new TypeError('second argument must be array-like'); |
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| 500 | } |
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| 501 | var len = others.length;
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| 502 | |||
| 503 | while (--len >= 0) { |
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| 504 | if (value > others[len]) {
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| 505 | return false; |
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| 506 | } |
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| 507 | } |
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| 508 | |||
| 509 | return true; |
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| 510 | }; |
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| 511 | |||
| 512 | /**
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| 513 | * is.nan
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| 514 | * Test if `value` is not a number.
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| 515 | *
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| 516 | * @param {Mixed} value value to test
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| 517 | * @return {Boolean} true if `value` is not a number, false otherwise
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| 518 | * @api public
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| 519 | */
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| 520 | |||
| 521 | is.nan = function (value) { |
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| 522 | return !is.number(value) || value !== value;
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| 523 | }; |
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| 524 | |||
| 525 | /**
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| 526 | * is.even
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||
| 527 | * Test if `value` is an even number.
|
||
| 528 | *
|
||
| 529 | * @param {Number} value value to test
|
||
| 530 | * @return {Boolean} true if `value` is an even number, false otherwise
|
||
| 531 | * @api public
|
||
| 532 | */
|
||
| 533 | |||
| 534 | is.even = function (value) { |
||
| 535 | return is.infinite(value) || (is.number(value) && value === value && value % 2 === 0); |
||
| 536 | }; |
||
| 537 | |||
| 538 | /**
|
||
| 539 | * is.odd
|
||
| 540 | * Test if `value` is an odd number.
|
||
| 541 | *
|
||
| 542 | * @param {Number} value value to test
|
||
| 543 | * @return {Boolean} true if `value` is an odd number, false otherwise
|
||
| 544 | * @api public
|
||
| 545 | */
|
||
| 546 | |||
| 547 | is.odd = function (value) { |
||
| 548 | return is.infinite(value) || (is.number(value) && value === value && value % 2 !== 0); |
||
| 549 | }; |
||
| 550 | |||
| 551 | /**
|
||
| 552 | * is.ge
|
||
| 553 | * Test if `value` is greater than or equal to `other`.
|
||
| 554 | *
|
||
| 555 | * @param {Number} value value to test
|
||
| 556 | * @param {Number} other value to compare with
|
||
| 557 | * @return {Boolean}
|
||
| 558 | * @api public
|
||
| 559 | */
|
||
| 560 | |||
| 561 | is.ge = function (value, other) { |
||
| 562 | if (isActualNaN(value) || isActualNaN(other)) {
|
||
| 563 | throw new TypeError('NaN is not a valid value'); |
||
| 564 | } |
||
| 565 | return !is.infinite(value) && !is.infinite(other) && value >= other;
|
||
| 566 | }; |
||
| 567 | |||
| 568 | /**
|
||
| 569 | * is.gt
|
||
| 570 | * Test if `value` is greater than `other`.
|
||
| 571 | *
|
||
| 572 | * @param {Number} value value to test
|
||
| 573 | * @param {Number} other value to compare with
|
||
| 574 | * @return {Boolean}
|
||
| 575 | * @api public
|
||
| 576 | */
|
||
| 577 | |||
| 578 | is.gt = function (value, other) { |
||
| 579 | if (isActualNaN(value) || isActualNaN(other)) {
|
||
| 580 | throw new TypeError('NaN is not a valid value'); |
||
| 581 | } |
||
| 582 | return !is.infinite(value) && !is.infinite(other) && value > other;
|
||
| 583 | }; |
||
| 584 | |||
| 585 | /**
|
||
| 586 | * is.le
|
||
| 587 | * Test if `value` is less than or equal to `other`.
|
||
| 588 | *
|
||
| 589 | * @param {Number} value value to test
|
||
| 590 | * @param {Number} other value to compare with
|
||
| 591 | * @return {Boolean} if 'value' is less than or equal to 'other'
|
||
| 592 | * @api public
|
||
| 593 | */
|
||
| 594 | |||
| 595 | is.le = function (value, other) { |
||
| 596 | if (isActualNaN(value) || isActualNaN(other)) {
|
||
| 597 | throw new TypeError('NaN is not a valid value'); |
||
| 598 | } |
||
| 599 | return !is.infinite(value) && !is.infinite(other) && value <= other;
|
||
| 600 | }; |
||
| 601 | |||
| 602 | /**
|
||
| 603 | * is.lt
|
||
| 604 | * Test if `value` is less than `other`.
|
||
| 605 | *
|
||
| 606 | * @param {Number} value value to test
|
||
| 607 | * @param {Number} other value to compare with
|
||
| 608 | * @return {Boolean} if `value` is less than `other`
|
||
| 609 | * @api public
|
||
| 610 | */
|
||
| 611 | |||
| 612 | is.lt = function (value, other) { |
||
| 613 | if (isActualNaN(value) || isActualNaN(other)) {
|
||
| 614 | throw new TypeError('NaN is not a valid value'); |
||
| 615 | } |
||
| 616 | return !is.infinite(value) && !is.infinite(other) && value < other;
|
||
| 617 | }; |
||
| 618 | |||
| 619 | /**
|
||
| 620 | * is.within
|
||
| 621 | * Test if `value` is within `start` and `finish`.
|
||
| 622 | *
|
||
| 623 | * @param {Number} value value to test
|
||
| 624 | * @param {Number} start lower bound
|
||
| 625 | * @param {Number} finish upper bound
|
||
| 626 | * @return {Boolean} true if 'value' is is within 'start' and 'finish'
|
||
| 627 | * @api public
|
||
| 628 | */
|
||
| 629 | is.within = function (value, start, finish) { |
||
| 630 | if (isActualNaN(value) || isActualNaN(start) || isActualNaN(finish)) {
|
||
| 631 | throw new TypeError('NaN is not a valid value'); |
||
| 632 | } else if (!is.number(value) || !is.number(start) || !is.number(finish)) { |
||
| 633 | throw new TypeError('all arguments must be numbers'); |
||
| 634 | } |
||
| 635 | var isAnyInfinite = is.infinite(value) || is.infinite(start) || is.infinite(finish);
|
||
| 636 | return isAnyInfinite || (value >= start && value <= finish);
|
||
| 637 | }; |
||
| 638 | |||
| 639 | /**
|
||
| 640 | * Test object.
|
||
| 641 | */
|
||
| 642 | |||
| 643 | /**
|
||
| 644 | * is.object
|
||
| 645 | * Test if `value` is an object.
|
||
| 646 | *
|
||
| 647 | * @param {Mixed} value value to test
|
||
| 648 | * @return {Boolean} true if `value` is an object, false otherwise
|
||
| 649 | * @api public
|
||
| 650 | */
|
||
| 651 | |||
| 652 | is.object = function (value) { |
||
| 653 | return value && '[object Object]' === toString.call(value); |
||
| 654 | }; |
||
| 655 | |||
| 656 | /**
|
||
| 657 | * is.hash
|
||
| 658 | * Test if `value` is a hash - a plain object literal.
|
||
| 659 | *
|
||
| 660 | * @param {Mixed} value value to test
|
||
| 661 | * @return {Boolean} true if `value` is a hash, false otherwise
|
||
| 662 | * @api public
|
||
| 663 | */
|
||
| 664 | |||
| 665 | is.hash = function (value) { |
||
| 666 | return is.object(value) && value.constructor === Object && !value.nodeType && !value.setInterval;
|
||
| 667 | }; |
||
| 668 | |||
| 669 | /**
|
||
| 670 | * Test regexp.
|
||
| 671 | */
|
||
| 672 | |||
| 673 | /**
|
||
| 674 | * is.regexp
|
||
| 675 | * Test if `value` is a regular expression.
|
||
| 676 | *
|
||
| 677 | * @param {Mixed} value value to test
|
||
| 678 | * @return {Boolean} true if `value` is a regexp, false otherwise
|
||
| 679 | * @api public
|
||
| 680 | */
|
||
| 681 | |||
| 682 | is.regexp = function (value) { |
||
| 683 | return '[object RegExp]' === toString.call(value); |
||
| 684 | }; |
||
| 685 | |||
| 686 | /**
|
||
| 687 | * Test string.
|
||
| 688 | */
|
||
| 689 | |||
| 690 | /**
|
||
| 691 | * is.string
|
||
| 692 | * Test if `value` is a string.
|
||
| 693 | *
|
||
| 694 | * @param {Mixed} value value to test
|
||
| 695 | * @return {Boolean} true if 'value' is a string, false otherwise
|
||
| 696 | * @api public
|
||
| 697 | */
|
||
| 698 | |||
| 699 | is.string = function (value) { |
||
| 700 | return '[object String]' === toString.call(value); |
||
| 701 | }; |