How do you make a button that adds text in HTML <input>?

JavascriptWeb DevelopmentObject Oriented Programming

Let’s say the following is our HTML button −

<button id="clickButton">Click the button to add the input into the belowText Box</button>

Use document.getElementById() to add a text in <input> on button click. Following is the code −

Example

 Live Demo

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initialscale=1.0">
<title>Document</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
</head>
<body>
<button id="clickButton">Click the button to add the input into the
below Text Box</button>
<br/><br />
<input id="readTheInput" />
<script>
   document.getElementById("clickButton").addEventListener("click", () =>{
      document.getElementById("readTheInput").value += "JavaScript";
   });
</script>
</body>
</html>

To run the above program, save the file name “anyName.html(index.html)” and right click on the file. Select the option “Open with Live Server” in VS Code editor.

Output

This will produce the following output −

Here, I am going to click the button two times. This will produce the following output −

raja
Published on 07-Sep-2020 09:00:05
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