Introduction
Working with radio buttons in jQuery is usually a bit tough in the event you’re not acquainted with the syntax and strategies concerned. On this Byte, we’ll cowl how one can test a radio button utilizing jQuery, discover different methods to perform this job, and eventually, present you how one can confirm if a radio button is checked.
Checking a Radio Button with jQuery
Essentially the most simple solution to test a radio button with jQuery is by utilizing the .prop() methodology. This methodology will get the property worth for under the primary ingredient within the matched set. It returns undefined for values of parts that haven’t been set.
This is an instance:
$('enter[name="radioButtonName"]').prop('checked', true);
On this instance, we’re utilizing the jQuery selector to search out an enter ingredient with the title “radioButtonName” after which utilizing the .prop() methodology to set its ‘checked’ property to true.
Different Methods to Examine a Radio Button with jQuery
Apart from the .prop() methodology, you may also use the .attr() methodology to test a radio button. The .attr() methodology units or returns attributes and values of the chosen parts.
This is how you should use it:
$('enter[name="radioButtonName"]').attr('checked', 'checked');
Notice:
Whereas each .prop() and .attr() can be utilized to test a radio button, you must know that there are some variations between these strategies. The .prop() methodology will get the property worth for under the first ingredient within the matched set, whereas .attr() will get the attribute worth for under the primary ingredient within the matched set.
In jQuery, .attr() will get or units the precise HTML attribute, which does not change even in the event you manipulate the ingredient’s property through JavaScript. However, .prop() interacts with the DOM properties of the ingredient, that are dynamically up to date and signify the present state of the ingredient. It is type of like .attr() provides you the blueprint, whereas .prop() exhibits you the stay standing.
Examine if a Radio Button is Checked
To confirm if a radio button is checked, you should use the :checked selector. This selector selects all parts which can be checked or chosen.
This is an instance:
if ($('enter[name="radioButtonName"]').is(':checked')) {
console.log("The radio button is checked.");
} else {
console.log("The radio button shouldn't be checked.");
}
Right here we’re utilizing the .is() methodology with the :checked selector to test if the radio button is checked. Whether it is, we print “The radio button is checked.” to the console; in any other case, we print “The radio button shouldn’t be checked.”
Conclusion
On this Byte, we have lined a couple of methods to test a radio button utilizing jQuery and how one can confirm if a radio button is checked. As an online developer, you will seemingly want to know these strategies as it is a fairly frequent job to do.
