36 lines
1.1 KiB
Plaintext
36 lines
1.1 KiB
Plaintext
import validate from './validate.js';
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const byteToHex = [];
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for (let i = 0; i < 256; ++i) {
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byteToHex.push((i + 0x100).toString(16).slice(1));
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}
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export function unsafeStringify(arr, offset = 0) {
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return (byteToHex[arr[offset + 0]] +
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byteToHex[arr[offset + 1]] +
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byteToHex[arr[offset + 2]] +
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byteToHex[arr[offset + 3]] +
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'-' +
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byteToHex[arr[offset + 4]] +
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byteToHex[arr[offset + 5]] +
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'-' +
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byteToHex[arr[offset + 6]] +
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byteToHex[arr[offset + 7]] +
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'-' +
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byteToHex[arr[offset + 8]] +
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byteToHex[arr[offset + 9]] +
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'-' +
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byteToHex[arr[offset + 10]] +
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byteToHex[arr[offset + 11]] +
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byteToHex[arr[offset + 12]] +
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byteToHex[arr[offset + 13]] +
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byteToHex[arr[offset + 14]] +
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byteToHex[arr[offset + 15]]).toLowerCase();
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}
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function stringify(arr, offset = 0) {
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const uuid = unsafeStringify(arr, offset);
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if (!validate(uuid)) {
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throw TypeError('Stringified UUID is invalid');
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}
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return uuid;
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}
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export default stringify;
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