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@unascribed
Last active Nov 12, 2021
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A simple and readable way to generate valid v4 UUIDs in JavaScript. CC0 https://creativecommons.org/publicdomain/zero/1.0/
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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