:lt() ** DEPRECATED **
JQ Home <<
Selectors <<
:lt()
Less than index selector.
Shorthand version $(':lt(index)')
Description
The :lt() selector, select all elements with an index less than the specified index within the matched set.
- Like all the positional selectors
:lt()uses a zero-based index to select from previously filtered elements. - Being a jQuery extension the
:lt()pseudo selector is not part of any current CSS specification. Therefore:lt()cannot take advantage of the performance boost provided by the native DOMquerySelectorAll()method. - The same results can be achieved with better performance using
$("cssSelector").slice(0, index).
This method was deprecated in jQuery 3.4.
Syntax
| Signature | Description |
|---|---|
jQuery(':lt(index)') | Less than index match |
Parameters
| Parameter | Description |
|---|---|
index | Zero based index of the element to match. |
Return
N/A.
:lt() Examples
Selectors << Top
Select all elements with an index less than the specified index within the matched set.
In the example below we apply an orange background to all table rows with an index < 3.
| Table Row 1, Table Data 1 | Table Row 1, Table Data 2 |
| Table Row 2, Table Data 1 | Table Row 2, Table Data 2 |
| Table Row 3, Table Data 1 | Table Row 3, Table Data 2 |
| Table Row 4, Table Data 1 | Table Row 4, Table Data 2 |
$(function(){
$('#btn1').on('click', function() {
$('.testtable tr:lt(3)').css('backgroundColor', 'orange');
});
});
In the example below we apply a green background to all elements with an id of '#fb' and an index < 1.
So the left navigation at the bottom will be selected but the right navigation will not.
$(function(){
$('#btn2').on('click', function() {
$('#fb li:lt(1)').css('backgroundColor', 'green');
});
});
Related Tutorials
jQuery Basic Tutorials - Lesson 4 - jQuery Selectors