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Radio Prop Checked or Not Checking jQuery with Examples

Radio Prop Checked or Not Checking jQuery with Examples

When working with forms on a webpage, you may need to check whether a radio button is checked or not. In jQuery, you can use the .prop() method to get or set the value of the checked property of a radio button.

Checking if a Radio Button is Checked or Not

To check if a radio button is checked or not using jQuery, you can use the .prop() method to get the value of the checked property. Here's an example:

<input type="radio" name="myRadio" value="1" id="myRadio1">
  <input type="radio" name="myRadio" value="2" id="myRadio2">
// Select the radio button elements using their name attribute
var radioButtons = $('input[name="myRadio"]');

// Loop through each radio button element
radioButtons.each(function() {
  var radioButton = $(this);
  
  // Check if the radio button is checked
  if (radioButton.prop('checked')) {
    console.log('The radio button with value ' + radioButton.val() + ' is checked');
  } else {
    console.log('The radio button with value ' + radioButton.val() + ' is not checked');
  }
});

This code selects the radio button elements using their name attribute and loops through each element using the .each() method. For each radio button element, the code checks the value of the checked property using the .prop() method. If the radio button is checked, the code logs a message to the console saying that the radio button is checked and displays its value. If the radio button is not checked, the code logs a message saying that the radio button is not checked and displays its value.

Setting the Checked Property of a Radio Button

To set the checked property of a radio button using jQuery, you can use the .prop() method to set the checked property to true. Here's an example:

<input type="radio" name="myRadio" value="1" id="myRadio1">
  <input type="radio" name="myRadio" value="2" id="myRadio2">
// Select the radio button element using its ID
var radioButton = $('#myRadio1');

// Set the radio button to checked
radioButton.prop('checked', true);

This code selects the radio button element using its ID and sets the checked property to true, which checks the radio button.

Conclusion

Using the .prop() method in jQuery makes it easy to check whether a radio button is checked or not, and to set the checked property of a radio button. By using these methods, you can easily manipulate radio buttons on a webpage to create a better user experience for your users.


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