Indeterminate Checkboxes
Ach wie spannend es gibt einen Indeterminate Zustand bei Checkboxen:
You can’t make a checkbox indeterminate through HTML. There is no indeterminate attribute. It is a property of checkboxes though, which you can change via JavaScript.
$("#some-checkbox").prop("indeterminate", true); // prop is jQuery 1.6+The indeterminate state is visual only. The checkbox is still either checked or unchecked as a value and will submit that value to the form it is a part of.
und ich hatte mich das schon immer gefragt….