28 lines
709 B
JavaScript
28 lines
709 B
JavaScript
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module.exports = function hexdump(ab) {
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var ui8 = new Uint8Array(ab);
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var bytecount = 0;
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var head = ' 0 1 2 3 4 5 6 7 8 9 A B C D E F';
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var trail;
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var str = [].slice.call(ui8).map(function (i) {
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var h = i.toString(16);
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if (h.length < 2) {
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h = '0' + h;
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}
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return h;
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}).join('').match(/.{1,2}/g).join(' ').match(/.{1,48}/g).map(function (str) {
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var lead = bytecount.toString(16);
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bytecount += 16;
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while (lead.length < 7) {
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lead = '0' + lead;
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}
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return lead + ' ' + str;
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}).join('\n');
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trail = ab.byteLength.toString(16);
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while (trail.length < 7) {
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trail = '0' + trail;
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}
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return head + '\n' + str + '\n' + trail;
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};
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