How to get good at identifying EDGE CASES?

How can I make myself better in identifying edge cases more quickly for easy questions?
is there a certain way my thinking when you are solving question or what ? thanks

This might help you @geforce

https://www.quora.com/What-are-some-good-ways-to-identify-the-edge-and-corner-cases-while-programming

https://discuss.codechef.com/questions/16998/generating-test-cases

Edge cases are really subjective and vary from approach to approach. In general, you need to have a good grasp on what you are doing, what you think the computer is making out of it, and what might be possible ways to out-do your approach. It comes with practice, theres no easy way sadly.