Please read here clearly:-
I want to add a class at <div id="targetdiv">
When i click on button <button id="btn">Btn</button>
, It will toggle class to <div id="dynamicdiv">
So i want when, The class toggle at <div id="dynamicdiv">
, a another class will toggle at <div id="targetdiv">
.
Working code:-
$(document).ready(function(){ $("#btn").click(function(){ $("#dynamicdiv").toggleClass("test") }) function hasClass(){ if($('#dynamicdiv').hasClass('test') ){ $('#targetdiv').addClass('newclass'); }else { $('#targetdiv').removeClass('newclass'); } } });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="dynamicdiv">sfasdfasf</div> <div id="targetdiv"><h1>qwer</h1></div> <button id="btn">Btn</button>
One possible approach:
$("#btn").click(function() {
var $dynamicDiv = $('#dynamicdiv');
$dynamicDiv.toggleClass('test');
$('#targetdiv').toggleClass('newclass', $dynamicDiv.hasClass('test'));
});
.toggleClass() can be given a second param, controlling the state of toggle:
state
Type: Boolean
A Boolean (not just truthy/falsy) value to determine whether the class should be added or removed.
You can do it all in the one function. I have done the update class with a ternary equartion. I added a red color to the newclass to demonstrate the class is being added / removed on subsequent button clicks.
$(document).ready(function(){ $("#btn").click(function(){ $("#dynamicdiv").toggleClass("test"); $('#dynamicdiv').hasClass('test') ? $('#targetdiv').addClass('newclass') : $('#targetdiv').removeClass('newclass'); }); })
.newclass { color: red}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="dynamicdiv">sfasdfasf</div> <div id="targetdiv"><h1>qwer</h1></div> <button id="btn">Btn</button>
Not sure what -> function hasClass(){
you thought this was meant to do,. It was a function that was never called.
But I think below is what you was after.
$(document).ready(function(){ $("#btn").click(function(){ var d = $("#dynamicdiv"); d.toggleClass("test") $("#targetdiv"). toggleClass("newclass", d.hasClass("test")); }) });
.test { background-color: red; } .newclass { background-color: green; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="dynamicdiv">sfasdfasf</div> <div id="targetdiv"><h1>qwer</h1></div> <button id="btn">Btn</button>
$(document).ready(function(){ $("#btn").click(function(){ $("#dynamicdiv").toggleClass("test"); $('#dynamicdiv').hasClass('test')?$('#targetdiv').addClass('newclass'):$('#targetdiv').removeClass('newclass'); }); });
.test{ color:red; font-size:36px; font-weight:bold; } .newclass{ border:1px solid green; background:blue; color:white; } #targetdiv{ padding:8px; height:90px; width:180px; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="dynamicdiv">Dynamic Div</div> <div id="targetdiv"><h1>Target Div</h1></div> <button id="btn">Btn</button>
As far as I know, there is no event listener for a class change. But you can create something similiar with an interval:
$(document).ready(function(){
$("#btn").click(function(){
$("#dynamicdiv").toggleClass("test")
});
function hasClass(){
$('#targetdiv').toggleClass('newclass', $('#dynamicdiv').hasClass('test'));
}
setInterval(hasClass, 100);
}
This will call the hasClass
function every 100 ms
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.