im really new to js, and im currently making a webiste. Because i have a repeated html code for the header and footer of the wepage, i used php to call the html file rather than repeating the same code. On the other hand,i wanted the current active page to have a different color, therefor i am using javascript to get the name of the class and add the class active to make a exeption in css. getting the id seems to be working, but i cant find the class active being add. why is this?
<p class="activepage" id="felt">aegearg<p>
<script>
var element = document.getElementsByClassName("activepage")[0];
var id = element.id;
getElementsByClassName(id).classList.add("active");
</script>
ids of the elements should be unique , search your element by id and then remove or add the desired class name
document.getElementById("MyElement").classList.add('MyClass');
document.getElementById("MyElement").classList.remove('MyClass');
you can use this code:
document.getElementById("IdElement").classList.add("ClassNameAdd");
you can do it like that:
const element = document.QuerySelector("#activepage");
element.ClassList.add("active");