How to set the second dropdown box only after the first one is set? [on hold]

206
April 26, 2019, at 3:50 PM

I'm working on a project that is using the select2 Jquery. I have two drop-down boxes. The second box's options are depends on the first box's selection. So now i want to manually set the value in both boxes.

How can I ensure that the second drop-down box value will only be set when the first drop down box has value and which filtered the second box's options?

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