How JavaScript gets the value of a checked checkbox

Tag: Gets the value of the checked checkbox

Idea: Use the Name property value to get the CheckBox object, and then loop through the Checked property (true indicates that it is selected, False indicates unchecked). The following example shows:

1. HTML structure

<input type= "checkbox" name= "Test" value= "1"/><span>1</span><input type= "checkbox" name= "Test" Value= "2"/><span>2</span><input type= "checkbox" name= "Test" value= "3"/><span>3</ Span><input type= ' button ' value= ' Submit ' onclick= ' fun () '/>

2. JavaScript code

function Fun () {obj = Document.getelementsbyname ("Test"), Check_val = [];for (k in obj) {if (obj[k].checked) Check_val.push (Obj[k].value);} alert (check_val);}

How JavaScript gets the value of a checked checkbox