1. First Way:
Below single line of code will provide the status of checkbox using jQuery. It checks whether the checked is checked or not using jQuery and will return 1 or 0.
So if you want to have true or false, then you need to use conditional expression as I have done in the code.
2. Second Way
3. Third Way
4. Fourth Way
The below code is to find out all the checkbox checked through out the page.