Learn how to determine if a variable corresponds to an empty object. If you need to check whether a value is equal to an empty object created using the object literal syntax const emptyObject = {}, there are several ways to do it. One method is by using the Object.entries() function, which returns an array containing the enumerable properties of an object. By calling Object.entries(objectToCheck), you can check if it returns an empty array....
When it comes to copying objects in JavaScript, it can get tricky, especially if you want to perform a deep clone. Deep cloning ensures that not only the primitive types like numbers and strings are copied, but also the referenced objects are recursively copied to create a completely independent cloned object. In this blog post, we will explore different options for deep cloning a JavaScript object. Deep Copy vs Shallow Copy A shallow copy in JavaScript only copies the references to external objects, while a deep copy also copies the referenced objects....
Learn how to merge two JavaScript objects and create a new object that combines their properties. Introduced in ES6 in 2015, the spread operator is a powerful way to merge two simple objects into one: const object1 = { name: 'Flavio' } const object2 = { age: 35 } const object3 = {...object1, ...object2 } If both objects contain a property with the same name, the second object’s property overwrites the first....