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A simple and readable way to generate valid v4 UUIDs in JavaScript. CC0 https://creativecommons.org/publicdomain/zero/1.0/
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| function randomUUID() { | |
| return randhex(8) + "-" + randhex(4) + "-4" + randhex(3) + "-" + choice(["8", "9", "a", "b"]) + randhex(3) + "-" + randhex(12); | |
| } | |
| let scratchTarr = new Uint32Array(1); | |
| function choice(arr) { | |
| crypto.getRandomValues(scratchTarr); | |
| return arr[Math.floor(scratchTarr[0]%arr.length)] | |
| } | |
| function randhex(count) { | |
| crypto.getRandomValues(scratchTarr); | |
| return ("00000000"+scratchTarr[0].toString(16)).slice(-count); | |
| } |
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