root / HServer / 00.Server / 00.Program / node_modules / ms / index.js
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/**
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* Helpers.
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*/
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var s = 1000; |
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var m = s * 60; |
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var h = m * 60; |
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var d = h * 24; |
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var y = d * 365.25; |
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/**
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* Parse or format the given `val`.
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*
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* Options:
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*
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* - `long` verbose formatting [false]
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*
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* @param {String|Number} val
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* @param {Object} [options]
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* @throws {Error} throw an error if val is not a non-empty string or a number
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* @return {String|Number}
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* @api public
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*/
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module.exports = function(val, options) { |
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options = options || {};
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var type = typeof val; |
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if (type === 'string' && val.length > 0) { |
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return parse(val);
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} else if (type === 'number' && isNaN(val) === false) { |
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return options.long ? fmtLong(val) : fmtShort(val); |
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} |
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throw new Error( |
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'val is not a non-empty string or a valid number. val=' +
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JSON.stringify(val) |
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); |
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}; |
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/**
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* Parse the given `str` and return milliseconds.
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*
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* @param {String} str
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* @return {Number}
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* @api private
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*/
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function parse(str) { |
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str = String(str); |
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if (str.length > 100) { |
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return;
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} |
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var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec( |
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str |
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); |
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if (!match) {
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return;
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} |
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var n = parseFloat(match[1]); |
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var type = (match[2] || 'ms').toLowerCase(); |
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switch (type) {
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case 'years': |
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case 'year': |
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case 'yrs': |
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case 'yr': |
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case 'y': |
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return n * y;
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case 'days': |
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case 'day': |
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case 'd': |
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return n * d;
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case 'hours': |
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case 'hour': |
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case 'hrs': |
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case 'hr': |
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case 'h': |
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return n * h;
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case 'minutes': |
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case 'minute': |
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case 'mins': |
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case 'min': |
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case 'm': |
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return n * m;
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case 'seconds': |
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case 'second': |
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case 'secs': |
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case 'sec': |
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case 's': |
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return n * s;
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case 'milliseconds': |
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case 'millisecond': |
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case 'msecs': |
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case 'msec': |
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case 'ms': |
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return n;
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default:
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return undefined; |
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} |
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} |
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/**
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* Short format for `ms`.
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*
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* @param {Number} ms
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* @return {String}
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* @api private
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*/
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function fmtShort(ms) { |
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if (ms >= d) {
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return Math.round(ms / d) + 'd'; |
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} |
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if (ms >= h) {
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return Math.round(ms / h) + 'h'; |
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} |
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if (ms >= m) {
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return Math.round(ms / m) + 'm'; |
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} |
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if (ms >= s) {
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return Math.round(ms / s) + 's'; |
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} |
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return ms + 'ms'; |
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} |
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/**
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* Long format for `ms`.
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*
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* @param {Number} ms
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* @return {String}
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* @api private
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*/
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function fmtLong(ms) { |
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return plural(ms, d, 'day') || |
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plural(ms, h, 'hour') ||
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plural(ms, m, 'minute') ||
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plural(ms, s, 'second') ||
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ms + ' ms';
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} |
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/**
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* Pluralization helper.
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*/
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function plural(ms, n, name) { |
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if (ms < n) {
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return;
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} |
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if (ms < n * 1.5) { |
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return Math.floor(ms / n) + ' ' + name; |
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} |
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return Math.ceil(ms / n) + ' ' + name + 's'; |
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} |