Chunking a string

Use a regular expression to easily chunk a string:

const string = '68656c6c6f20776f726c6421';
const chunks = string.match(/.{2}/g);
// ['68', '65', '6c', '6c', '6f', '20', '77', '6f', '72', '6c', '64', '21']
const hex = chunks.map((chunk) => Number(`0x${chunk}`));
const buf = Buffer.from(hex);
// <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64 21>
console.log(buf.toString());
// 'hello world!'

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