PHP's bin2hex in TypeScript

How to use

Install via yarn add locutus and import: import { bin2hex } from 'locutus/php/strings/bin2hex'.

Or with CommonJS: const { bin2hex } = require('locutus/php/strings/bin2hex')

Use a bundler that supports tree-shaking so you only ship the functions you actually use. Vite, webpack, Rollup, and Parcel all handle this. For server-side use this is less of a concern.

Examples

These examples are extracted from test cases that automatically verify our functions against their native counterparts.

#	code	expected result
1	bin2hex('Kev')	'4b6576'
2	bin2hex(String.fromCharCode(0x00))	'00'
3	bin2hex("æ")	'c3a6'

Here's what our current TypeScript equivalent to PHP's bin2hex looks like.

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export function bin2hex(s: string): string {
  //      discuss at: https://locutus.io/php/bin2hex/
  // parity verified: PHP 8.3
  //     original by: Kevin van Zonneveld (https://kvz.io)
  //     bugfixed by: Onno Marsman (https://twitter.com/onnomarsman)
  //     bugfixed by: Linuxworld
  //     improved by: ntoniazzi (https://locutus.io/php/bin2hex:361#comment_177616)
  //       example 1: bin2hex('Kev')
  //       returns 1: '4b6576'
  //       example 2: bin2hex(String.fromCharCode(0x00))
  //       returns 2: '00'
  //       example 3: bin2hex("æ")
  //       returns 3: 'c3a6'

  const encoder = new TextEncoder()
  const bytes = encoder.encode(s)
  let hex = ''
  for (const byte of bytes) {
    hex += byte.toString(16).padStart(2, '0')
  }
  return hex
}

export function bin2hex(s) {
  //      discuss at: https://locutus.io/php/bin2hex/
  // parity verified: PHP 8.3
  //     original by: Kevin van Zonneveld (https://kvz.io)
  //     bugfixed by: Onno Marsman (https://twitter.com/onnomarsman)
  //     bugfixed by: Linuxworld
  //     improved by: ntoniazzi (https://locutus.io/php/bin2hex:361#comment_177616)
  //       example 1: bin2hex('Kev')
  //       returns 1: '4b6576'
  //       example 2: bin2hex(String.fromCharCode(0x00))
  //       returns 2: '00'
  //       example 3: bin2hex("æ")
  //       returns 3: 'c3a6'

  const encoder = new TextEncoder()
  const bytes = encoder.encode(s)
  let hex = ''
  for (const byte of bytes) {
    hex += byte.toString(16).padStart(2, '0')
  }
  return hex
}

Improve this function

Locutus is a community effort following The McDonald's Theory: we ship first iterations, hoping others will improve them. If you see something that could be better, we'd love your contribution.

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