Use id and getElementById method to Change the value of a text field using JavaScript.
This is one way of doing it:
document.getElementById("mytext").value = "My value";
Example JavaScript set input value by id
HTML Example code Set the value of an input field using JS:-
You can write the code in JavaScript as given below to set its value as.
<html>
<body>
<input id="in1" type="text" >
<script>
var els=document.getElementById("in1");
els.value = "Test Content"
</script>
</body>
</html>
Output:
Do comment if you have any doubts and suggestions on this topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version