how do I unselect hidden buttons
Please follow these steps in my jsfiddle:
1. click on the (open grid) link and select option "13", buttons A to N would appear
2. click on the select all answers button, all buttons A to N would turn green.
3. Now click on the open grid again and select option "5". As you can see all the buttons from A to 5 are now selected (Have all turned green).
4. Now go back to grid and choose option 13. As you can see all buttons A to N would be selected. I don't want this to happen. What should happen is that the 5 buttons selected before the option change should remain selected and the other 8 buttons should go back being unselected, but I do not know how to do this.
I tried including this in the selectAll() function but it did not work:
This is because the selectAll() method will only be invoked when actually clicking on the "Select All Answers" button. But you did not click it between step 3 and 4
What you should do: When you click on a grid button, toggle answerBtnsOn/answerBtnsOff for all the (A-Z) buttons not currently showing.
I've updated the fiddle
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