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DIY: Snapshot Array

Explore how to implement a snapshot array in JavaScript by creating methods to set values, take snapshots, and retrieve data from specific snapshots. This lesson helps you develop skills to handle dynamic data storage and retrieval, vital for tackling real-world and interview coding challenges.

Problem statement

In this challenge, you have to implement a snapshotArray with the following properties:

  • constructor(length): This property initializes a data structure with length number of indexes. Initially, the value at each index is 0.

  • set_value(idx, val) ...