| /** |
| * Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/> |
| * Build: `lodash modularize exports="node" -o ./compat/` |
| * Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/> |
| * Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE> |
| * Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors |
| * Available under MIT license <http://lodash.com/license> |
| */ |
| |
| /** Used to generate unique IDs */ |
| var idCounter = 0; |
| |
| /** |
| * Generates a unique ID. If `prefix` is provided the ID will be appended to it. |
| * |
| * @static |
| * @memberOf _ |
| * @category Utilities |
| * @param {string} [prefix] The value to prefix the ID with. |
| * @returns {string} Returns the unique ID. |
| * @example |
| * |
| * _.uniqueId('contact_'); |
| * // => 'contact_104' |
| * |
| * _.uniqueId(); |
| * // => '105' |
| */ |
| function uniqueId(prefix) { |
| var id = ++idCounter; |
| return String(prefix == null ? '' : prefix) + id; |
| } |
| |
| module.exports = uniqueId; |
