js native, jquery single-select box radio summary (get the value, set the default selected value, style)

Single selection box radio summary:

1. Screenshot of page style:

<div class="radio-inline">
  <input type="radio"  name="killOrder" id="killOrder1" value="1"/>
  <label for="killOrder1">是</label>
</div>
<div class="radio-inline">
  <input type="radio"  name="killOrder" id="killOrder2" value="0" checked/>
  <label for="killOrder2">否</label>
</div>

Use the label label to click on the text to select the radio box or deselect the radio box 

Two ways to use label:    https://blog.csdn.net/qq_40015157/article/details/110850331

 

Two, js native

1. js natively gets the selected value

var tesObj = document.getElementsByName("killOrder");
//获取选中的值
for(var i=0; i < tesObj.length; i++){
 	if (tesObj[i].checked==true){
         alert(tesObj[i].value+'  是选中的value值');
         break;
    }
}

2. js native settings are selected

var tesObj = document.getElementsByName("killOrder");

//设置value值为0选中
for(var i=0; i < tesObj.length; i++){
 	if (tesObj[i].value=="0"){
           tesObj[i].checked = true;
           break;
    }
}

Three, jquery

1. Get the value

$("input[name='killOrder']:checked").val();

$('input:radio:checked').val();

$("input[type='radio']:checked").val();

$(":radio[checked]").each(function(radio){alert($(this).val());

 

Note: Sometimes attr() can't work. The difference between attr() and prop() can be found in the article.   https://blog.csdn.net/qq_40015157/article/details/110823718

 

2. Set the first radio to the selected value:

$('input:radio:first').prop('checked', 'checked');

$('input:radio:first').prop('checked', true);


$('input:radio:first').attr('checked', 'checked');

$('input:radio:first').attr('checked', true);

 

3. Set the last radio as the selected value:

$('input:radio:last').prop('checked', 'checked');

$('input:radio:last').prop('checked', true);


$('input:radio:last').attr('checked', 'checked');

$('input:radio:last').attr('checked', true);

 

4. Set any radio as the selected value according to the index value:

$('input:radio').eq(索引值).prop('checked', true);//索引值=0,1,2....

$('input:radio').slice(1,2).prop('checked', true);


$('input:radio').eq(索引值).attr('checked', true);//索引值=0,1,2....

$('input:radio').slice(1,2).attr('checked', true);

 

5. Set the radio to the selected value according to the value

$("input:radio[value='2']").prop('checked', true);

$("input[value='1']").prop('checked', true);

$("input[name='killOrder'][value='1']").prop("checked", "checked");

let v = 1;//变量
$("input[name='killOrder'][value='" + v + "']").prop("checked", true);


$("input:radio[value='2']").attr('checked', true);

$("input[value='1']").attr('checked', true);

 

6. Delete the radio with a value of 2

$("input:radio[value='2']").remove();

 

7. Delete the first radio

$("input:radio").eq(索引值).remove();//索引值=0,1,2....


//如删除第3个radio:$("input:radio").eq(2).remove();

 

8. Traverse the radio

$('input:radio').each(function(index,domEle){

     //写入代码

});

 

9. Modify the radio button style

input[type="radio"] + label::before {
    content: "\a0";
    display: inline-block;
    vertical-align: middle;
    width: 15px;
    height: 15px;
    margin-right: 5px;
    border-radius: 50%;
    text-indent: .15em;
    margin-bottom: 4px;
    border: 1px solid #CCCCCC;
}
input[type="radio"]:checked + label::before {
    background-color: #4A90E2;
    background-clip: content-box;
    padding: 2px;
}
input[type="radio"] {
    position: absolute;
    clip: rect(0, 0, 0, 0);
}
.radio-inline{
    padding-left: 0;
}
input[type=radio][disabled]:checked + label::before{
    background-color:#CCCCCC;
    background-clip: content-box;
    padding: 2px;

}

Check box summary:    https://blog.csdn.net/qq_40015157/article/details/110819778 

Select all inverted: https://blog.csdn.net/qq_40015157/article/details/110661715

https://blog.csdn.net/qq_40015157/article/details/80693777

Input box:  https://blog.csdn.net/qq_40015157/article/details/80692543