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<jQuery> Nine. class operation

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Author: User
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<!DOCTYPE HTML><HTMLLang= "en"><Head>    <MetaCharSet= "UTF-8">    <title>Title</title>    <style>. Basic{Background-color:Pink;Color:Red;font-size:33px;        }. Bigger{font-size:66px;        }    </style></Head><Body><inputtype= "button"value= "add Basic class"><inputtype= "button"value= "add bigger class"><inputtype= "button"value= "remove Basic class"><inputtype= "button"value= "remove bigger class"><inputtype= "button"value= "toggle class"><ul>    <Li>1</Li>    <Li>2</Li>    <Li>3</Li>    <Li>4</Li></ul><Scriptsrc= "jquery-3.2.1.js"></Script><Script>    $(function () {        //Add a class        $("input"). eq (0). Click (function () {            $("Ul>li"). addclass ("Basic");        }); $("input"). eq (1). Click (function () {            $("Ul>li"). addclass ("bigger");        }); //remove a class        $("input"). eq (2). Click (function () {            $("Ul>li"). Removeclass ("Basic");        }); //remove a class        $("input"). eq (3). Click (function () {            $("Ul>li"). Removeclass ("bigger");        }); //Judging classes, Switching classes        $("input"). eq (4). Click (function () {            //if ($ ("ul>li"). hasclass ("basic")) {            //$ ("ul>li"). removeclass ("basic");            //} else {            //$ ("ul>li"). addclass ("basic");            // }            $("Ul>li"). Toggleclass ("Basic");    }); });</Script></Body></HTML>

<jQuery> Nine. class operation

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