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Challenge: Singleton Pattern

Explore how to implement the Singleton design pattern in JavaScript by creating a class with controlled instance creation and default property initialization. This lesson helps you understand managing single-instance objects, enhancing your ability to apply creational patterns effectively in coding interviews.

Problem statement

In this challenge, you have to implement a configuration that uses the singleton pattern. You are given a class ConfigureVals. Define it as follows:

  • It should have a constructor that defines the properties xpoint, ypoint, and ...