How to Create Pure Objects in JavaScript

When you create new objects in JavaScript — even if it's an empty object — it will have some extra properties and methods that are inherited from the global Object class. You can check what an empty object has in JavaScript by printing it to the console:

When talking about pure objects, we are referring to objects that don't inherit anything and therefore, don't have any additional properties upfront. To create one, we can simply use the Object.create method, and passing null to it:

const pure = Object.create(null);

Passing null to the method call sets what should be the prototype of the object, which in this case, is null.

50 JavaScript Interview QuestionsAnd their answers explainedHere are 50 JavaScript interview questions that often come up during a technical interview. In one place, one resource to learn from.Learn More

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Resources:

• The global Object class
• Object.create method