Array functions in jQuery

jQuery has very limited array functions since JavaScript has most of them itself. But here are the ones they have: Utilities - jQuery API.

An easy way to get the max and min value in an array is as follows. This has been explained at get max & min values in array

var myarray = [5,8,2,4,11,7,3];
// Function to get the Max value in Array
Array.max = function( array ){
return Math.max.apply( Math, array );
};

// Function to get the Min value in Array
Array.min = function( array ){
return Math.min.apply( Math, array );
};
// Usage 
alert(Array.max(myarray));
alert(Array.min(myarray));

The Visual jQuery site has some great examples of jQuery's array functionality. (Click "Utilities" on the left-hand tab, and then "Array and Object operations".)

There's a plugin for jQuery called 'rich array' discussed in Rich Array jQuery plugin .

Look into the .grep() and .map() jQuery functions.

Also there is a jquery plugin that adds some methods on an array.

http://www.learningjquery.com/2009/02/implementing-prototypes-array-methods-in-jquery

This plugin implements Prototypes lib array methods such as

var arr = [1,2,3,4,5,6];
$.protify(arr, true);
arr.all();  // true

var arr = $.protify([1,2,3,4,5,6]);
arr.any(); // true

and more

You can use underscore.js. It really makes things simple.

For example removing elements from array you need to do -

_.without([1,2,3], 2);

and the result will be [1,3].

It reduces the code that you write using grep etc in jquery.