HackerRank: Left Rotation (JavaScript)

A left rotation operation on an array shifts each of the array's elements 1 unit to the left. Given an array a of n integers and a number, d, perform d left rotations on the array. Return the updated array to be printed as a single line of space-separated integers.

As a way to improve my coding skills and technical interview prep, I practice HackerRank problems and solve them live with minimal edits. This allows viewers to see my thought process and problem-solving techniques along with the true struggles I go through when solving these technical coding problems. I also delve into tutorials about building out data structures and algorithms.

I mainly code in JavaScript and Python. I also try to focus on Easy and Medium difficulty HackerRank problems, but occasionally detour onto other challenges, like those from my own technical interviews, daily coding challenges, or just fun coding puzzles I come across.