javascript - Add active class to current element with JS (not Jquery) -


this question has answer here:

what best way add active class "active/current" element plain javascript?

with jquery use typical:

$(selector).on('click', function(){     $(selector).removeclass('active');     $(this).addclass('active'); });

but javascript (not vanilla js, jquery, etc)??

heres fiddle: http://jsfiddle.net/meef4/2065/

you can first element has active class. since there 1 <a> active class can directly access <a> element using [0]. replace active class no text. finally, add active class clicked <a> element.

first attach click handler <a> tags:

var elements = document.getelementsbytagname("a"); (var = 0; < elements.length; i++) {   elements[i].addeventlistener("click", clickhandle); }

now, create function clickhandle below:

function clickhandle(event) {          var anchor = document.getelementsbyclassname("active");          anchor[0].classname = anchor[0].classname.replace(/active/g, "");           event.target.classname += "active";     }

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