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Last change
on this file since 188ee53 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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| 1 | var toString = require('./toString');
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| 2 |
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| 3 | /** Used to generate unique IDs. */
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| 4 | var idCounter = 0;
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| 5 |
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| 6 | /**
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| 7 | * Generates a unique ID. If `prefix` is given, the ID is appended to it.
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| 8 | *
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| 9 | * @static
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| 10 | * @since 0.1.0
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| 11 | * @memberOf _
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| 12 | * @category Util
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| 13 | * @param {string} [prefix=''] The value to prefix the ID with.
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| 14 | * @returns {string} Returns the unique ID.
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| 15 | * @example
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| 16 | *
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| 17 | * _.uniqueId('contact_');
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| 18 | * // => 'contact_104'
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| 19 | *
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| 20 | * _.uniqueId();
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| 21 | * // => '105'
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| 22 | */
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| 23 | function uniqueId(prefix) {
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| 24 | var id = ++idCounter;
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| 25 | return toString(prefix) + id;
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| 26 | }
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| 27 |
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| 28 | module.exports = uniqueId;
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