Native JS realizes form checkbook Get the selected value

This article introduces the use of native JS for the implementation from a form checkbox to obtain the selected data value, the specific implementation of the following, interested friends can refer to ha, I hope to help you

Get the selected data value from a form checkbox:

Copy Code code as follows:
<input type= "checkbox" Name= "CB" value= "1"/>aa
<input type= "checkbox" Name= "CB" value= "2"/>bb
<input type= "checkbox" Name= "CB" value= "3"/>cc
<input type= "checkbox" Name= "CB" value= "4"/>dd
<br/>
<input type= "button" value= "Submit" onclick= "checkedvalues ()"/>

Using native JS writing:

Copy Code code as follows:

function Checkedvalues () {
var arr=new Array ();
var checkbox=document.getelementbyname (' CB ');
For (var i=0;i<checkbox.length (); i++) {
if (checkbox[i].checked==true) {
Arr.push (Checkbox[i].value);
alert (Checkbox[i].value);
}
}
}