Document querySelectorAll() Method - Find out how many elements with class="example" there are in the document (using the length property of the NodeList object): - Javascript DOM

Javascript examples for DOM:Document querySelectorAll

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Description

Document querySelectorAll() Method - Find out how many elements with class="example" there are in the document (using the length property of the NodeList object):

Demo Code

ResultView the demo in separate window 

<!DOCTYPE html>
<html>
<body>

<div class="example">
A div element with class="example"
</div>//from w w w . j a  va2  s  . co m

<div class="example">
Another div element with class="example"
</div>

<p class="example">A p element with class="example"</p>

<button onclick="myFunction()">Test</button>

<p id="demo"></p>

<script>
function myFunction() {
    var x = document.querySelectorAll(".example");
    document.getElementById("demo").innerHTML = x.length;
}
</script>

</body>
</html>

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