Detailed examples of the basic usage of filters in jQuery

This article mainly introduces the basic usage of filters in jQuery, and analyzes the related operating techniques of jQuery filters for judging and setting table element attributes in the form of simple examples. Friends who need it can refer to it. I hope it can help everyone. .

The examples in this article describe the basic usage of filters in jQuery. Share it with everyone for your reference, the details are as follows:

HTML text:

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Javascript operation code:

$('#b1').click(function(){
/*table:eq(0) tr:even table:eq(0):筛选出第一张表格 tr:even:筛选出tr属性的对象
*注意table和tr对象中间有空格，表示从属关系
*/
$('table:eq(0) tr:even').css("background","red"); 
});
$('#b2').click(function(){
$('table:eq(0) tr:odd').css("background","green");
});
$('#b3').click(function(){
$('table:eq(1) td:even').css("background","red");
});
$('#b4').click(function(){
$('table:eq(1) td:odd').css("background","green");
});
$('#b5').click(function(){
$('table:eq(2) td:even').css("background","green");
});

Effect:

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