Auto populate input field using JavaScript

This tutorial example shows how to populate input fields in form automatically when a page is loaded or when a checkbox is checked. The below example has three fields and one of then gets populated when the page is loaded and another one of them is populated when checkbox is checked.

Sometimes we need to populate the input fields depending upon another field then it may be useful. So below example will give you an idea so that you can also populate your form fields according to your requirements.

Final Output

When home page is displayed

auto populate using javascript

When checbox is checked

auto populate using javascript

That’s all. Thanks for your patience. Please do not forget to leave a comment.

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