PHP's strtok in JavaScript

How to use

You you can install via yarn add locutus and require this function via const strtok = require('locutus/php/strings/strtok').

It is important to use a bundler that supports tree-shaking so that you only ship the functions that you actually use to your browser, instead of all of Locutus, which is massive. Examples are: Parcel, webpack, or rollup.js. For server-side use this is typically less of a concern.

Examples

Please note that these examples are distilled from test cases that automatically verify our functions still work correctly. This could explain some quirky ones.

#	code	expected result
1	var $string = "\t\t\t\nThis is\tan example\nstring\n" var $tok = strtok($string, " \n\t") var $b = '' while ($tok !== false) {$b += "Word="+$tok+"\n"; $tok = strtok(" \n\t");} var $result = $b	"Word=This\nWord=is\nWord=an\nWord=example\nWord=string\n"

Notes

• Use tab and newline as tokenizing characters as well

Here’s what our current JavaScript equivalent to PHP's strtok looks like.

module.exports = function strtok(str, tokens) {
  //  discuss at: https://locutus.io/php/strtok/
  // original by: Brett Zamir (https://brett-zamir.me)
  //      note 1: Use tab and newline as tokenizing characters as well
  //   example 1: var $string = "\t\t\t\nThis is\tan example\nstring\n"
  //   example 1: var $tok = strtok($string, " \n\t")
  //   example 1: var $b = ''
  //   example 1: while ($tok !== false) {$b += "Word="+$tok+"\n"; $tok = strtok(" \n\t");}
  //   example 1: var $result = $b
  //   returns 1: "Word=This\nWord=is\nWord=an\nWord=example\nWord=string\n"

  const $global = typeof window !== 'undefined' ? window : global
  $global.$locutus = $global.$locutus || {}
  const $locutus = $global.$locutus
  $locutus.php = $locutus.php || {}

  if (tokens === undefined) {
    tokens = str
    str = $locutus.php.strtokleftOver
  }
  if (str.length === 0) {
    return false
  }
  if (tokens.indexOf(str.charAt(0)) !== -1) {
    return strtok(str.substr(1), tokens)
  }
  for (var i = 0; i < str.length; i++) {
    if (tokens.indexOf(str.charAt(i)) !== -1) {
      break
    }
  }
  $locutus.php.strtokleftOver = str.substr(i + 1)

  return str.substring(0, i)
}

A community effort

Not unlike Wikipedia, Locutus is an ongoing community effort. Our philosophy follows The McDonald’s Theory. This means that we assimilate first iterations with imperfections, hoping for others to take issue with-and improve them. This unorthodox approach has worked very well to foster fun and fruitful collaboration, but please be reminded to use our creations at your own risk. THE SOFTWARE IS PROVIDED "AS IS" has never been more true than for Locutus.

Now go and: [ View on GitHub | Edit on GitHub | View Raw ]

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