:lt()S2C 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 DOM querySelectorAll() method.

The same results can be achieved with better performance using $("cssSelector").slice(0, index).

Syntax


Signature Description
jQuery(':lt(index)')Less than index match

Parameters


Parameter Description
indexZero based index of the element to match.

Return

N/A.

:lt() Examplego to top of page 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 For Testing Positional Selectors
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(){
  $('#btn13').on('click', function() {
    $('.testtable tr:lt(3)').css('backgroundColor', 'orange');
  });
});

Press the button below to action the above code:


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