I have a radio button named "Choose" with the options yes and no. If I select any one of the options and click the button labeled "clear", I need to clear the selected option, using javascript. How can I accomplish that?
11 Answers
You don't need to have unique id for the elements, you can access them by their name attribute:
If you're using name="Choose", then:
With recent jQuery
$('input[name=Choose]').prop('checked',false);
With old jQuery (<1.6)
$('input[name=Choose]').attr('checked',false);
or in pure JavaScript
var ele = document.getElementsByName("Choose");
for(var i=0;i<ele.length;i++)
ele[i].checked = false;
3 Comments
NVRAM
Actually, this is what David Andersson suggested. I guess I missed his comment before I posted.
i2ijeya
+1 Its really working NVRAM.. Thanks and i am choosing this as a my accepted answer. Thanks everyone for your valuable answers.
Irfan Y
in jquery version above 1.6 use $('input[name=Choose]').prop('checked',false);
This should work. Make sure each button has a unique ID. (Replace Choose_Yes and Choose_No with the IDs of your two radio buttons)
document.getElementById("Choose_Yes").checked = false;
document.getElementById("Choose_No").checked = false;
An example of how the radio buttons should be named:
<input type="radio" name="Choose" id="Choose_Yes" value="1" /> Yes
<input type="radio" name="Choose" id="Choose_No" value="2" /> No
6 Comments
i2ijeya
If i have one common id means, then how could i proceed?
Shawn Steward
You need to change it to separate IDs. You should not have more than one of the same ID on a page. You need to use the same Name to make it a radio button group, but the ID has to be unique.
David Andersson
@i2ijeya I would use a library such as jquery.com where I could select by class if I wanted to select more radio buttons at once. You could also use document.getElementsByName("Choose").
Shawn Steward
While jQuery is great, it does not need to be used for every little bit of JavaScript. In this case it would just be unnecessary overhead for something that's pretty simple to do in plain JavaScript.
NVRAM
As David says, you can access by name, so id isn't required for this function. Also, I suspect a typo -- your value is the same for both buttons.
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Wouldn't a better alternative be to just add a third button ("neither") that will give the same result as none selected?
4 Comments
Filini
I quote this solution. Radio buttons, as a UI element, are not meant to be reset (ie: none of them checked). They are designed to start with 1 option checked, and the possibility to change it. You may consider to change your radio buttons to a dropdown list: {empty}|Yes|No
Shawn Steward
@Filini Windows forms programming has 3-state radio buttons, not sure why they can't be used for the Web.
Filini
@Shawn, are you sure you are not thinking about tri-state checkboxes? Anyway, how does this relate to the possibility to reset a radio button?
Umesh
@Filini - sometimes you might need to reset the radio buttons, all unchecked. I faced situation in a Quiz App - when user restarts the quiz, all the options (radio buttons) should be unchecked (created in AngularJS).
In my case this got the job done:
const chbx = document.getElementsByName("input_name");
for(let i=0; i < chbx.length; i++) {
chbx[i].checked = false;
}
1 Comment
Manny Alvarado
I'm having an issue with this js code. When you reset a radio groud, whenever I select the same value again, I get an undefined
YES<input type="radio" name="group1" id="sal" value="YES" >
NO<input type="radio" name="group1" id="sal1" value="NO" >
<input type="button" onclick="document.getElementById('sal').checked=false;document.getElementById('sal1').checked=false">
2 Comments
Shawn Steward
That won't actually work if NO is checked because javascript will never see the 2nd element with the same ID.
Josh
-1. It's invalid HTML to have multiple elements with the same ID.
<form>
<input type="radio" name="btn"> Item1
<input type="radio" name="btn"> Item2<br>
<input type="reset">
</form>
This could work..
1 Comment
Ethan
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