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@igorgatis
Created March 15, 2016 16:42
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Simple hexdump in Javascript
function hexdump(buffer, blockSize) {
blockSize = blockSize || 16;
var lines = [];
var hex = "0123456789ABCDEF";
for (var b = 0; b < buffer.length; b += blockSize) {
var block = buffer.slice(b, Math.min(b + blockSize, buffer.length));
var addr = ("0000" + b.toString(16)).slice(-4);
var codes = block.split('').map(function (ch) {
var code = ch.charCodeAt(0);
return " " + hex[(0xF0 & code) >> 4] + hex[0x0F & code];
}).join("");
codes += " ".repeat(blockSize - block.length);
var chars = block.replace(/[\x00-\x1F\x20]/g, '.');
chars += " ".repeat(blockSize - block.length);
lines.push(addr + " " + codes + " " + chars);
}
return lines.join("\n");
}
@username1565
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username1565 commented Nov 28, 2019

Just created fork, here, including modification from @mkropat.

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