Displaying to the user a radio button before it has been selected

1. How do I make radio buttons pre checked?
2. Should radio buttons be pre selected?
3. How can check if the user selected a certain radio button or not?
4. How to display radio button value in JavaScript?

How do I make radio buttons pre checked?

You can check a radio button by default by adding the checked HTML attribute to the <input> element. You can disable a radio button by adding the disabled HTML attribute to both the <label> and the <input> .

Should radio buttons be pre selected?

Always Offer a Default Selection

In case of radio buttons this means that radio buttons should always have exactly one option pre-selected. Select the safest and most secure option (to prevent data loss).

How can check if the user selected a certain radio button or not?

There are two methods to solve this problem which are discussed below: Using Input Radio checked property: The Input Radio checked property is used to return the checked status of an Input Radio Button. Use document. getElementById('id'). checked method to check whether the element with selected id is check or not.

How to display radio button value in JavaScript?

To get the value of the selected radio button, a user-defined function can be created that gets all the radio buttons with the name attribute and finds the radio button selected using the checked property. The checked property returns True if the radio button is selected and False otherwise.