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JavaScript compares objects by reference, not by content. Even if two arrays look identical, they live in different memory locations. The Map sees them as different keys. Here are three ways to solve ...

c) Comeback later once data arrived. ☄️Callback hell: Neating multiple callbacks might create problem to read, debug and maintain the logic of code. To overcome this promises and async/awaits comes ...

In a world defined by polycrisis, leaders are trying to ...