20 lines
558 B
TypeScript
20 lines
558 B
TypeScript
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export function concatArrays(arrays: Uint8Array[]): Uint8Array {
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const totalLength = arrays.reduce((accum, x) => accum + x.length, 0);
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const result = new Uint8Array(totalLength);
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for (let i = 0, offset = 0; i < arrays.length; i++) {
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result.set(arrays[i], offset);
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offset += arrays[i].length;
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}
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return result;
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}
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export function encodeUint8(value: number): Uint8Array {
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if (value >= 2 ** 8 || value < 0) {
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throw new Error(`Out of bound value in Uint8: ${value}`);
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}
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return new Uint8Array([value]);
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}
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