如何清除Javascript中的单选按钮？

Question

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?

Answer 1

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 jQuery it is as simple as:

  \n$('input[name=Choose]').attr('checked',false); \n

• or in pure JavaScript:

  \n   var ele = document.getElementsByName("Choose"); \n   for(var i=0;i<ele.length;i++) \n      ele[i].checked = false; \n

  Demo for JavaScript

Answer 2

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

Answer 3

If you do not intend to use jQuery, you can use simple javascript like this

document.querySelector('input[name="Choose"]:checked').checked = false;

Only benefit with this is you don't have to use loops for two radio buttons

Answer 4

不是更好的选择是添加第三个按钮（“都不是”），它会给出与没有选择相同的结果吗？

Answer 5

一种清除一组单选按钮的 ES6 方法：

    Array.from( document.querySelectorAll('input[name="group-name"]:checked'), input => input.checked = false );

Answer 6

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;
}

Answer 7

Simple, no jQuery required:

<a href="javascript:clearChecks('group1')">clear</a>

<script type="text/javascript">
function clearChecks(radioName) {
    var radio = document.form1[radioName]
    for(x=0;x<radio.length;x++) {
        document.form1[radioName][x].checked = false
    }
}

</script>

Answer 8

if the id of the radio buttons are 'male' and 'female', value reset can be done by using jquery

$('input[id=male]').attr('checked',false);
$('input[id=female]').attr('checked',false);

Answer 9

If you have a radio button with same id, then you can clear the selection

Radio Button definition :

<input type="radio" name="paymentType" id="paymentType" value="CASH" /> CASH
<input type="radio" name="paymentType" id="paymentType" value="CHEQUE" /> CHEQUE
<input type="radio" name="paymentType" id="paymentType" value="DD" /> DD

Clearing all values of radio button:

document.formName.paymentType[0].checked = false;
document.formName.paymentType[1].checked = false;
document.formName.paymentType[2].checked = false;
...

Answer 10

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">