| 1 | const BASE = 16;
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| 2 | let INDEX = 0;
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| 3 |
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| 4 | /**
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| 5 | * Generate an identifier from
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| 6 | * - customizable prefix
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| 7 | * - hexadecimal timestap
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| 8 | * - local incrementor
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| 9 | * that is
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| 10 | * - cheap
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| 11 | * - platform agnostic
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| 12 | * - unique enough to prevent accidental collision
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| 13 | *
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| 14 | * @param {string} [prefix=zs]
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| 15 | * @return {string}
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| 16 | */
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| 17 | function unique(prefix = 'zs') {
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| 18 | const hexadecimalTimestamp = new Date().getTime().toString(BASE);
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| 19 | const index = INDEX++;
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| 20 |
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| 21 | return [prefix, hexadecimalTimestamp, index].join('-');
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| 22 | }
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| 23 |
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| 24 | module.exports = unique;
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