The copyToArray() method is utilized in copying pair of keys of the Map to an Array.
Method Definition: def copyToArray(xs: Array[(A, B)]): Unit
Return Type: It returns the keys of the map to an array.
(geeks, 5) (for, 3) (cs, 2) 0 0
So, here the keys are copied to the array.
(geeks, 5) (for, 3) 0 0 0
Here, the identical keys are removed.
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