TanTan
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35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
// This alphabet uses `A-Za-z0-9_-` symbols.
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// The order of characters is optimized for better gzip and brotli compression.
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// References to the same file (works both for gzip and brotli):
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// `'use`, `andom`, and `rict'`
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// References to the brotli default dictionary:
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// `-26T`, `1983`, `40px`, `75px`, `bush`, `jack`, `mind`, `very`, and `wolf`
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let urlAlphabet =
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'useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict'
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let customAlphabet = (alphabet, defaultSize = 21) => {
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return (size = defaultSize) => {
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let id = ''
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// A compact alternative for `for (var i = 0; i < step; i++)`.
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let i = size | 0
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while (i--) {
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// `| 0` is more compact and faster than `Math.floor()`.
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id += alphabet[(Math.random() * alphabet.length) | 0]
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}
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return id
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}
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}
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let nanoid = (size = 21) => {
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let id = ''
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// A compact alternative for `for (var i = 0; i < step; i++)`.
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let i = size | 0
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while (i--) {
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// `| 0` is more compact and faster than `Math.floor()`.
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id += urlAlphabet[(Math.random() * 64) | 0]
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}
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return id
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}
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module.exports = { nanoid, customAlphabet }
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