Check all Checkboxes in Page via Developer Tools

Question

I have a loop that creates 20 check-boxes in the same page (it creates different forms). I want via chrome developer tools to

Answer 1

Javascript function to toggle (check/uncheck) all checkbox.

function checkAll(bx)
{
 var cbs = document.getElementsByTagName('input');
 for(var i=0; i < cbs.length; i++)
 {
    if(cbs[i].type == 'checkbox')
    {
        cbs[i].checked = bx.checked;
     }
 }
}

If you want to it from developer tools then remove parameter of function and put the value as "true" or "false" instead of "bx.checked"