πŸ‘¨πŸ»β€πŸ’» πŸ”‹ 3 Ways to Remove a Property from a JavaScript Object βœ‚οΈ

In JavaScript, objects are like containers holding key-value pairs πŸ”‘. But what if you need to remove a property ❌ from an object?

The Expert Developer
2 min read1 day ago

Let’s explore three approaches to accomplish this:

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1. The delete Keyword πŸ—‘οΈ

This is the most straightforward method. Here’s how it works:

let obj = {
name: "Alice",
age: 30,
city: "New York"
};

// Delete the 'age' property
delete obj.age;
console.log(obj); // Output: { name: "Alice", city: "New York" }

In this example, delete obj.age; removes the age property from the obj object. The delete operator returns true if the deletion is successful and false if the property doesn't exist or can't be deleted (like non-configurable properties) πŸ€”.

Important Note: Built-in prototype properties are often non-configurable, so you can’t use delete on them.

2. Object Destructuring with Rest Syntax ✨

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The Expert Developer
The Expert Developer

Written by The Expert Developer

React Native, React Js, Android, IOS, Firebase, Javascript etc

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