current position:Home>[jQuery framework, Ali innovatively released the new high concurrency classic]
[jQuery framework, Ali innovatively released the new high concurrency classic]
2021-08-27 02:11:36 【No hair loss Xiaoyi】
<script type=“text/javascript”>
???$(function () {
???// tag chooser
???// Change the element name to <div> The background color of all elements of is Red
???$(“#b2”).click(function f() {
???$(“div”).css(“backgroundColor”,“yellow”);
???});
???});
</script>
// tag chooser
// Change the element name to <div> The background color of all elements of is yellow id=“b1”
$(“#b1”).click(function f() {
???$(“div”).css(“backgroundColor”,“yellow”);
});
//id Selectors
// change id by one The background color of the element is Pink ?id=“b2”
$(“#b2”).click(function () {
???$(“#one”).css(“backgroundColor”,“pink”);
});
// Class selectors
// change class by mini The background color of all elements of is Red id=“b3”
$(“#b3”).click(function () {
???$(“.mini”).css(“backgroundColor”,“red”);
});
// Union selector
// Change everything <span> Elements and id by two The background color of the element is blue id=“b4”
$(“#b4”).click(function () {
???$(“span,#two”).css(“backgroundColor”,“blue”);
});
// Descendant selector
// change <body> All in <div> The background color of is red id=“b1”
$(“#b1”).click(function () {
???$(“body div”).css(“backgroundColor”,“pink”);
});
// Child selectors
// change <body> Intron <div> The background color of is Red id=“b2”
$(“#b2”).click(function () {
???$(“body?> div”).css(“backgroundColor”,“red”);
});
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”>
<html>
??<head>
???<title> Hierarchy selector </title>
???<meta http-equiv=“content-type” content=“text/html; charset=UTF-8”>
???<script ?src=“…/js/jquery-3.3.1.min.js”></script>
???<style type=“text/css”>
???div,span{
???width: 180px;
???height: 180px;
???margin: 20px;
???background: #9999CC;
???border: #000 1px solid;
???float:left;
???font-size: 17px;
???font-family:Roman;
???}
???
???div .mini{
???width: 50px;
???height: 50px;
???background: #CC66FF;
???border: #000 1px solid;
???font-size: 12px;
???font-family:Roman;
???}
???
???div .mini01{
???width: 50px;
???height: 50px;
???background: #CC66FF;
???border: #000 1px solid;
???font-size: 12px;
???font-family:Roman;
???}
???
???</style>
???<script type=“text/javascript”>
???$(function () {
???// Descendant selector
???// change <body> All in <div> The background color of is red
???$(“#b1”).click(function () {
???$(“body div”).css(“backgroundColor”,“pink”);
???});
???// Child selectors
???// change <body> Intron <div> The background color of is Red
???$(“#b2”).click(function () {
???$(“body > div”).css(“backgroundColor”,“red”);
???});
???});
???</script>
???
???</head>
???
???<body>
???
???<input type=“button” value=“ preservation ” ?class=“mini” name=“ok” ?class=“mini” />
???<input type=“button” value=" change <body> All in <div> The background color of is red " ?id=“b1”/>
???<input type=“button” value=" change <body> Intron <div> The background color of is Red " ?id=“b2”/>
???
?
??? There is a miracle called persistence
???<h2> Self confidence comes from hard work </h2>
???
???<div id=“one”>
???id by one ?
???
???</div>
???
???<div id=“two” class=“mini” >
???id by two ??class yes mini
???<div ?class=“mini” >class yes mini</div>
???</div>
???
???<div class=“one” >
???class yes one
???<div ?class=“mini” >class yes mini</div>
???<div ?class=“mini” >class yes mini</div>
???</div>
???<div class=“one”>
???class yes one
???<div ?class=“mini01” >class yes mini01</div>
???<div ?class=“mini” >class yes mini</div>
???</div>
???
???
???<span class=“spanone”> ???span
???</span>
???
???</body>
???
???
</html>
// Contains properties title Of div The background color of the element is red " ?id=“b1”
$(“#b1”).click(function () {
???$(“div[title]”).css(“backgroundColor”,“pink”);
});
// attribute title The value is equal to test Of div The background color of the element is red " ?id=“b2”
?$(“#b2”).click(function () {
???$(“div[title=‘test’]”).css(“backgroundColor”,“red”);
?});
// attribute title Value is not equal to test Of div Elements ( There is no attribute title Will also be selected ) The background color is red " ?id=“b3”
?$(“#b3”).click(function () {
???$(“div[title!=‘test’]”).css(“backgroundColor”,“red”);
?});
// attribute title value With te Start Of div The background color of the element is red " ?id=“b4”
?$(“#b4”).click(function () {
???$(“div[title^=‘te’]”).css(“backgroundColor”,“red”);
?});
// attribute title value With est end Of div The background color of the element is red " ?id=“b5”
$(“#b5”).click(function () {
??? =‘est’]").css(“backgroundColor”,“red”);
});
// attribute title value contain es Of div The background color of the element is red " ?id=“b6”
?$(“#b6”).click(function () {
???$(“div[title*=‘es’]”).css(“backgroundColor”,“red”);
?});
// Select attribute id Of div Elements , Then select the attribute in the result title Value contains “es” Of div The background color of the element is red " ?id=“b7”
$(“#b7”).click(function () {
?$(“div[id][title*=‘es’]”).css(“backgroundColor”,“red”);
});
// Change the first div The background color of the element is Red " ?id=“b1”
$(“#b1”).click(function () {
???$(“div:first”).css(“backgroundColor”,“red”);
});
// Change the last one div The background color of the element is Red " ?id=“b2”
$(“#b2”).click(function () {
???$(“div:last”).css(“backgroundColor”,“red”);
});
// change class Not for one All of the div The background color of the element is Red " ?id="b3
$(“#b3”).click(function () {
???$(“div:not(.one)”).css(“backgroundColor”,“red”);
});
// Change the index value to even div The background color of the element is Red " ?id=“b4”
$(“#b4”).click(function () {
???$(“div:even”).css(“backgroundColor”,“red”);
});
// Change the index value to an odd number div The background color of the element is Red " ?id=“b5”
$(“#b5”).click(function () {
???$(“div:odd”).css(“backgroundColor”,“red”);
});
// Change the index value to be equal to 3 Of div The background color of the element is Red " ?id=“b7”
$(“#b7”).click(function () {
???$(“div:eq(3)”).css(“backgroundColor”,“red”);
});
// Change the index value to be greater than 3 Of div The background color of the element is Red " ?id=“b6”
$(“#b6”).click(function () {
???$(“div:gt(3)”).css(“backgroundColor”,“red”);
});
// Change the index value to less than 3 Of div The background color of the element is Red " ?id=“b8”
$(“#b8”).click(function () {
???$(“div:lt(3)”).css(“backgroundColor”,“red”);
});
// Change the background color of all title elements to Red " ?id=“b9”
$(“#b9”).click(function () {
???$(“:header”).css(“backgroundColor”,“red”);
});
// utilize jQuery Object's val() Method change available in form <input> The value of the element " ?id=“b1”
$(“#b1”).click(function () {
???$(“input[type=‘text’]:enabled”).val(“aaa”);
});
// utilize jQuery Object's val() Method change form is not available <input> The value of the element " ?id=“b2”
$(“#b2”).click(function () {
???$(“input[type=‘text’]:disabled”).val(“bbb”);
});
// utilize jQuery Object's length Property gets the number of checkboxes selected " ?id=“b3”
$(“#b3”).click(function () {
???var lengths = $(“input[type=‘checkbox’]:checked”).length;
???alert(lengths);
});
copyright notice
author[No hair loss Xiaoyi],Please bring the original link to reprint, thank you.
https://en.qdmana.com/2021/08/20210827021135077e.html
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