PHP array_chunk in JavaScript

Hi people,

Well I need of PHP array_chunk function to use in JavaScript.

Studying hardly I do:

Array.prototype.array_chunk = function( size, preserve_keys ) { this.size = size; this.preserve_keys = ( preserve_keys ? preserve_keys : preserve_keys = false ); var ChunkedArrayLength= Math.ceil( this.length / size ); var ChunkedArray= new Array( ChunkedArrayLength ); var SourceArrayIndex= 0; for( var i = 0; i < ChunkedArrayLength; i++ ) { ChunkedArray[ i ]=new Array( size ); for( var j = 0; j < size; j++ ) { ChunkedArray[ i ][ j ] = this[ SourceArrayIndex++ ]; } } return ChunkedArray; }
Works perfectly

My problem, now, is to reproduce the preserve_keys parameter of "original" function.

Any idea how I can do?

Thanks and sorry if my English is bad ^^