Task of Challenge #20

Rotate an array to the left 1 position. E.g. [1, 2, 3, 4, 5] -> [ 2, 3, 4, 5, 1 ] | [1, 2, 4, 5] -> [ 2, 4, 5, 1 ].



You can achieve the challenge’s goal quite easily by using the shift() and the push() method for arrays. The shift() method removes the first element of an array and returns it. If we store it now into a variable (in this case first) then we can use the push() method to push it as the last element of an array.

If you want to dig deeper into shift() and push() you can read the Mozilla Dev Notes or take my JavaScript Course, where I introduce you also to all kinds of array methods (there are plenty of them and they are very useful).

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The output for the code above is:

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