Question

assuming the following code:

<input type="checkbox" name="categories[9507]">

is there a javascript command that can simply select every checkbox like that on the page? the name’s change slightly in numbers only.

I need to select around 15000 on a page, without a select all available 🙁

(something that I could put into a bookmark and click, or console of firebug would be best)

Answer 1

Pure JS, modern browsers-only (IE 8+, FF 3.5+, Opera 10+, Safari 3.2+, Chrome 1+):

(function() {
    var chs = document.querySelectorAll​('input[type="checkbox"][name^="categories"]')​​​​​​​​​​​​​​​​​​​​​​​​​​​​;
    for (var i=0; i<chs.length; i++) chs[i].checked = true;
}());

Fiddle

QSA Reference