Programming Example

Take value or string form textbox and show it in alert using Javascript

👁 286 Views

💻 Practical Program

📘 Step by Step Learning

Take value form textbox and show in alert using Javascript

Program Code

<input type="text" id="demo">
<input type="button" onclick="msg(document.getElementById('demo').value)" value="call function"/> 

<script> 

function msg(a){  
	alert("Value from Textbox: "+a+"");  
}  

</script>

Output

Copy above code and run it

Explanation

When you will put any value in the textbox it will show in alert

How to learn from this program

First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.

Practice suggestion

After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.