Make the checkbox uncheck the checkbox that is about to be selected

I had a problem today when I was working on a project. You need to leave the checkbox blank. The checkbox you are about to check is not checked. Finally, a method found to work well is hereby recorded.

$("input[type='checkbox']").each(function(){
if(this.checked){
this.checked=false;
}
});

How it works: loop through each input with a checkbox type. If it is checked, set its checked property to false.

Of course, to achieve the effect of anti-selection, add a little more. The code is as follows:

$("input[type='checkbox']").each(function(){
if(this.checked){
this.checked=false;
}

if(!(this.checked)){
this.checked=true;
}
});