HORIZON PROJECT

var isInteger = require('./isInteger');

/** Used as references for various `Number` constants. */

var MAX_SAFE_INTEGER = 9007199254740991;

/**

 * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754

 * double precision number which isn't the result of a rounded unsafe integer.

 *

 * **Note:** This method is based on

 * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).

 *

 * @static

 * @memberOf _

 * @since 4.0.0

 * @category Lang

 * @param {*} value The value to check.

 * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.

 * @example

 *

 * _.isSafeInteger(3);

 * // => true

 *

 * _.isSafeInteger(Number.MIN_VALUE);

 * // => false

 *

 * _.isSafeInteger(Infinity);

 * // => false

 *

 * _.isSafeInteger('3');

 * // => false

 */

function isSafeInteger(value) {

  return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;

}

module.exports = isSafeInteger;