jQuery selector first x items of specific class
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I’ve been playing around with this a little. Grabbing a specific number of DOM elements based on a specified class.
Update 27/11/12: Optimised versions below.
First, basics to get the first and last elements like so:
var firstSpan = $('span.class:first'),
lastSpan = $('span.class:last');
To get all the elements that match a specified class like so:
var allSpans = $('span.class').get();
or the nth/xth element like so:
var firstSpan = $('span.class').get(0),
secondSpan = $('span.class').get(1);
//etc...
But how to get say the first 10 elements or elements 10-20?
It would be nice to go something like:
var mySpans = $('span.class').get(0,10);
Unfortunately, the .get() function doesn’t allow for a range to be passed, but just a single index. So here is an attempt to use the jQuery .get() function to include a range of elements.
(function($) { //function that gets a range of dom elements against a jQuery selector //returns an array of dom elements $.fn.getRange = function(start,end) { var elems = []; for ( var i = start; i < = end; i++ ) { elems.push(this.get(i)); } return elems; }; //testing console.log($('div').getRange(1,10)); console.log($('div').getRange(10,20)); })(jQuery); [/js] Does anyone know of a better way to achieve this?
Optimised versions Thanks to Vlad, Redky and Daniel. Using slice. [js] var $el = $('div').get().slice(0,10); console.log($el);
console.log($('div:gt(3):lt(6)'));