Wednesday 22 August 2018
javascript - How do I add a class to a given element?
Answer
Answer
I have an element that already has a class:
Now I want to create a JavaScript function that will add a class to the div
(not replace, but add).
How can I do that?
Answer
Add a space plus the name of your new class to the className
property of the element. First, put an id
on the element so you can easily get a reference.
Then
var d = document.getElementById("div1");
d.className += " otherclass";
Note the space before otherclass
. It's important to include the space otherwise it compromises existing classes that come before it in the class list.
See also element.className on MDN.
Use element.classList.add to add a class:
element.classList.add("my-class");
And element.classList.remove to remove a class:
element.classList.remove("my-class");
php - file_get_contents shows unexpected output while reading a file
I want to output an inline jpg image as a base64 encoded string, however when I do this : $contents = file_get_contents($filename); print &q...
-
I have an app which needs a login and a registration with SQLite. I have the database and a user can login and register. But i would like th...
-
I would like to use enhanced REP MOVSB (ERMSB) to get a high bandwidth for a custom memcpy . ERMSB was introduced with the Ivy Bridge micro...
-
I am new to dask and I found so nice to have a module that makes it easy to get parallelization. I am working on a project where I was able ...
No comments:
Post a Comment