Print every N-th Element from an Array JS : <ol>
<li>Print every N-th Element from an Array 
Write a JS function that collects every element of an array, on a given step.
The input comes as array of strings. The last element is N - the step.
The collections are every element on the N-th step starting from the first one. If the step is "3", you need to print the 1-st, the 4-th, the 7-th … and so on, until you reach the end of the array. Then, print elements in a row, separated by single space.</li>
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<p>Example:
Input                                         Output
['5', '20', '31', '4', '20', '2']             5 31 20</p>
