Element NodeList Property - Loop through all <p> elements inside a <div> element, and change the background color of each <p>: - Javascript DOM

Javascript examples for DOM:Element NodeList

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Description

Element NodeList Property - Loop through all <p> elements inside a <div> element, and change the background color of each <p>:

Demo Code

ResultView the demo in separate window 

<!DOCTYPE html>
<html>
<head>
<style>
div {// w w  w .  j ava  2 s  .c o  m
    border: 1px solid black;
    margin: 5px;
}
</style>
</head>
<body>

<div id="myDIV">
  <p>First p element in div.</p>
  <p>Another p element in div.</p>
  <p>A third p element in div.</p>
</div>

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

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

<script>
function myFunction() {
    var div = document.getElementById("myDIV");
    var nodelist = div.getElementsByTagName("P");

    var i;
    for (i = 0; i < nodelist.length; i++) {
        nodelist[i].style.backgroundColor = "red";
    }
}
</script>

</body>
</html>

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