Use PHP functions in JavaScript

JavaScript ltrim

Strips whitespace from the beginning of a string

function ltrim ( str, charlist ) {
    // Strips whitespace from the beginning of a string  
    // 
    // version: 909.322
    // discuss at: http://phpjs.org/functions/ltrim    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: Erkekjetter
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Onno Marsman
    // *     example 1: ltrim('    Kevin van Zonneveld    ');    // *     returns 1: 'Kevin van Zonneveld    '
    charlist = !charlist ? ' \\s\u00A0' : (charlist+'').replace(/([\[\]\(\)\.\?\/\*\{\}\+\$\^\:])/g, '$1');
    var re = new RegExp('^[' + charlist + ']+', 'g');
    return (str+'').replace(re, '');
}

external links: original PHP docs | raw js source

Examples

Running

1	ltrim(' Kevin van Zonneveld ');

Should return

1	'Kevin van Zonneveld '

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

php.js uses JsLint to help us keep our code consistent and prevent some common bugs.

Eventually we want all code to pass or at least take into consideration most fixes suggested by JsLint, following this JsLint configuration we’ve decided on.