multiformats/dist/src/bytes.js

Interface for multihash, multicodec, multibase and CID

export const empty = new Uint8Array(0);
export function toHex(d) {
    return d.reduce((hex, byte) => hex + byte.toString(16).padStart(2, '0'), '');
}
export function fromHex(hex) {
    const hexes = hex.match(/../g);
    return hexes != null ? new Uint8Array(hexes.map(b => parseInt(b, 16))) : empty;
}
export function equals(aa, bb) {
    if (aa === bb) {
        return true;
    }
    if (aa.byteLength !== bb.byteLength) {
        return false;
    }
    for (let ii = 0; ii < aa.byteLength; ii++) {
        if (aa[ii] !== bb[ii]) {
            return false;
        }
    }
    return true;
}
export function coerce(o) {
    if (o instanceof Uint8Array && o.constructor.name === 'Uint8Array') {
        return o;
    }
    if (o instanceof ArrayBuffer) {
        return new Uint8Array(o);
    }
    if (ArrayBuffer.isView(o)) {
        return new Uint8Array(o.buffer, o.byteOffset, o.byteLength);
    }
    throw new Error('Unknown type, must be binary type');
}
export function isBinary(o) {
    return o instanceof ArrayBuffer || ArrayBuffer.isView(o);
}
export function fromString(str) {
    return new TextEncoder().encode(str);
}
export function toString(b) {
    return new TextDecoder().decode(b);
}
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