Object.assign

Object.assign is a static method in JavaScript that copies the values of all enumerable own properties from one or more source objects to a target object, returning the target object. It performs a shallow copy, meaning nested objects are copied by reference rather than duplicated. This method is commonly used for object merging, cloning, and property assignment in JavaScript applications.

Also known as: Object assign, assign method, object merge, shallow copy, ES6 assign

Why learn Object.assign?

Developers should learn Object.assign for tasks like merging configuration objects, creating shallow copies of objects, or adding properties to existing objects without mutation. It's particularly useful in functional programming patterns where immutability is desired, and in frameworks like React for state updates. Use cases include combining default and user settings, or implementing object composition in libraries.

Learning Resources

• docs: MDN Web Docs: Object.assign
• tutorial: JavaScript.info: Object methods, 'assign'
• tutorial: FreeCodeCamp: How to Use Object.assign() in JavaScript
• docs: W3Schools: JavaScript Object.assign()