Merge Array
How to combine two sorted arrays into one? We can do this easily with the spread
operator.
a1 = [1, 2, 5, 6, 9]; a2 = [3, 4, 7, 8, 10]; res = [...a1, ...a2]; // [1, 2, 5, 6, 9, 3, 4, 7, 8, 10]
But if we want to combine and sort? Again, nothing complicated!
res = [...a1, ...a2].sort((a, b) => +a > +b); // [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
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