09c36f2c87
resolves #42 Co-authored-by: johba <johba@harb.eth> Reviewed-on: https://codeberg.org/johba/harb/pulls/49
31 lines
1 KiB
TypeScript
31 lines
1 KiB
TypeScript
export function bytesToUint256LittleEndian(bytes: Uint8Array): bigint {
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// console.log(hexString);
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// const cleanHexString = hexString.startsWith('0x') ? hexString.substring(2) : hexString;
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// const bytes = new Uint8Array(Math.ceil(cleanHexString.length / 2));
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// for (let i = 0, j = 0; i < cleanHexString.length; i += 2, j++) {
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// bytes[j] = parseInt(cleanHexString.slice(i, i + 2), 16);
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// }
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let value: bigint = 0n;
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for (let i = bytes.length - 1; i >= 0; i--) {
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value = (value << 8n) | BigInt(bytes[i]);
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}
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return value;
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}
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export function uint256ToBytesLittleEndian(value: bigint): Uint8Array {
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const bytes = new Uint8Array(4);
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for (let i = 0; i < 4; i++) {
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bytes[i] = Number((value >> (8n * BigInt(i))) & 0xffn);
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}
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return bytes;
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// let hexString = '0x';
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// for (let i = 0; i < bytes.length; i++) {
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// // Convert each byte to a hexadecimal string and pad with zero if needed
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// hexString += bytes[i].toString(16).padStart(2, '0');
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// }
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// return hexString;
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}
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