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'use strict';
module.exports = function uniqid(prefix, moreEntropy) {
// discuss at: http://locutus.io/php/uniqid/
// original by: Kevin van Zonneveld (http://kvz.io)
// revised by: Kankrelune (http://www.webfaktory.info/)
// note 1: Uses an internal counter (in locutus global) to avoid collision
// example 1: var $id = uniqid()
// example 1: var $result = $id.length === 13
// returns 1: true
// example 2: var $id = uniqid('foo')
// example 2: var $result = $id.length === (13 + 'foo'.length)
// returns 2: true
// example 3: var $id = uniqid('bar', true)
// example 3: var $result = $id.length === (23 + 'bar'.length)
// returns 3: true
if (typeof prefix === 'undefined') {
prefix = '';
}
var retId;
var _formatSeed = function _formatSeed(seed, reqWidth) {
seed = parseInt(seed, 10).toString(16); // to hex str
if (reqWidth < seed.length) {
// so long we split
return seed.slice(seed.length - reqWidth);
}
if (reqWidth > seed.length) {
// so short we pad
return Array(1 + (reqWidth - seed.length)).join('0') + seed;
}
return seed;
};
var $global = typeof window !== 'undefined' ? window : global;
$global.$locutus = $global.$locutus || {};
var $locutus = $global.$locutus;
$locutus.php = $locutus.php || {};
if (!$locutus.php.uniqidSeed) {
// init seed with big random int
$locutus.php.uniqidSeed = Math.floor(Math.random() * 0x75bcd15);
}
$locutus.php.uniqidSeed++;
// start with prefix, add current milliseconds hex string
retId = prefix;
retId += _formatSeed(parseInt(new Date().getTime() / 1000, 10), 8);
// add seed hex string
retId += _formatSeed($locutus.php.uniqidSeed, 5);
if (moreEntropy) {
// for more entropy we add a float lower to 10
retId += (Math.random() * 10).toFixed(8).toString();
}
return retId;
};
//# sourceMappingURL=uniqid.js.map
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