@gmod/cram/esm/seek-bzip/toHex.js

read CRAM files with pure Javascript

// from https://www.xaymar.com/articles/2020/12/08/fastest-uint8array-to-hex-string-conversion-in-javascript/
// Pre-Init
const LUT_HEX_4b = [
    '0',
    '1',
    '2',
    '3',
    '4',
    '5',
    '6',
    '7',
    '8',
    '9',
    'A',
    'B',
    'C',
    'D',
    'E',
    'F',
];
const LUT_HEX_8b = new Array(0x100);
for (let n = 0; n < 0x100; n++) {
    LUT_HEX_8b[n] = `${LUT_HEX_4b[(n >>> 4) & 0xf]}${LUT_HEX_4b[n & 0xf]}`;
}
// End Pre-Init
export function toHex(buffer) {
    let out = '';
    for (let idx = 0, edx = buffer.length; idx < edx; idx++) {
        out += LUT_HEX_8b[buffer[idx]];
    }
    return out;
}
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