File "code04.html"
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MIME-type: text/html
Charset: utf-8
<!DOCTYPE html>
<html>
<body>
<!--
<h2>Using The id Attribute in JavaScript</h2>
<p>JavaScript can access an element with a specified id by using the getElementById() method:</p>
<h1 id="myHeader">Hello World!</h1>
<button onclick="displayResult()">Change text</button>
<script>
function displayResult()
{
document.getElementById("myHeader").innerHTML = "Have a nice day!";
}
</script>
-->
<label>Title</label><br />
<input id="myinput421" type="text" value="Computer Literacy">
<!--
name=" columntwo<?php echo $i;?>"
-->
<br/><br/>
<button onclick="show();">Show input value</button>
<script>
function show() {
let input = document.getElementById("myinput421");
alert("Value = " + input.value);
}
</script>
</body>
</html>