object cloning

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....

In JavaScript, the spread operator ... allows you to expand arrays, objects, and strings. Understanding how to utilize this operator can significantly enhance your coding capabilities. Let’s explore its various applications and examples. Expanding Arrays To create a new array by expanding an existing one, you can use the spread operator. Take the following array a as an example: const a = [1, 2, 3]; Using the spread operator, you can easily create a new array b by appending additional elements:...

The getOwnPropertyDescriptors() method of the Object object in JavaScript allows us to retrieve all own (non-inherited) property descriptors of an object. By using this method, we can obtain a new object that provides a comprehensive list of descriptors. Here’s an example to illustrate its usage: const dog = {} Object.defineProperties(dog, { breed: { value: 'Siberian Husky' } }) Object.getOwnPropertyDescriptors(dog) /* { breed: { value: 'Siberian Husky', writable: false, enumerable: false, configurable: false } } */ One key use case for this method arises from the limitations of Object....