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28 lines
562 B
28 lines
562 B
var toString = require('./toString'); |
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/** Used to generate unique IDs. */ |
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var idCounter = 0; |
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/** |
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* Generates a unique ID. If `prefix` is given, the ID is appended to it. |
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* |
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* @static |
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* @since 0.1.0 |
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* @memberOf _ |
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* @category Util |
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* @param {string} [prefix=''] The value to prefix the ID with. |
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* @returns {string} Returns the unique ID. |
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* @example |
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* |
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* _.uniqueId('contact_'); |
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* // => 'contact_104' |
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* |
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* _.uniqueId(); |
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* // => '105' |
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*/ |
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function uniqueId(prefix) { |
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var id = ++idCounter; |
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return toString(prefix) + id; |
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} |
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module.exports = uniqueId;
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