When I learned about these tips, they became treasures to me.
We occasionally need to correctly filter unique values. For instance, if you use social media, our buddies are connected. Those mutual fronts are the antithesis of unique friends, or non-mutual friends.
Sets are what we use for that.
A set is a group of clearly defined data, i.e., non-empty, diverse, and distinct.
From left to right, the comma operator (,) evaluates each of its operands before returning the value of the last operand.
It’s never been so simple to swap values; typically, we construct a temporary variable and then write temporary = b; b = a; a = temporary;.
But you get a headache from that, right?
In any case, you can now just swap using array destructuring:
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