jquery operation <input type= "Radio" >

jquery operation <input type= "Radio" >

<input type= "Radio" > as follows:

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<inputtype="radio" name="city" value="BeiJing">北京<input type="radio" name="city" value="TianJin">天津<input type="radio" name="city" value="NanJing">南京<input type="radio" name="city" value="YangZhou">扬州<inputtype="radio" name="city" value="SuZhou">苏州

1. Get the value of the selected radio:

1	$("input[name=‘city‘]:checked").val();

Use the element selector, then use the attribute filter name= ' city ', and finally use: checked select the selected element.

2. Set the selected state to the radio of the specified value:

1	$("input[name=‘city‘][value=‘YangZhou‘]").attr("checked",true);

Give Name= "City" and Value= "Yangzhou" Radio set the selected state.

3. Cancel the selected state of the Name= "City" Radio:

1	$(‘input[name="city"]:checked‘).attr("checked",false);

4. Get the number of radio of Name= "City":

1	$("input[name=‘city‘]").length;

5. Get Name= "City" and the index is even radio:

1	$("input[name=‘city‘]:even");

The index is starting from 0.

6. Get Name= "City" and the index is odd radio:

1	$("input[name=‘city‘]:odd");

The index is starting from 0.

7. Iterative Radio:

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$("input[name=‘city‘]").each(function(i,obj){    //i,迭代的下标，从0开始    //obj,当前的对象(HTMLInputElement),可以使用obj.value格式获取属性值    //$(this);当前jQuery对象,可以使用$(this).val()获取属性值});

Iterate name= the radio of "City".

8. Disable Radio:

1	$("input[name=‘city‘]").attr("disabled",true);

Disables the radio of Name= "City".

9. Enable Radio:

1	$("input[name=‘city‘]").attr("disabled",false);

Enable the radio of Name= "City".

jquery operation <input type= "Radio" >