What Are Global Objects in Node.js? The global object in Node.js is called ‘global‘. It provides access to several built-in objects, including‘process’, ‘console’, ‘buffer’, ‘setImmediate()’, ‘clearImmediate()’, and ‘setTimeout()‘, etc. For instance, theprocessobject, an ...
Before we tackle the [object Object] issue, let's quickly go over what JavaScript objects are. An object in JavaScript is a collection of key-value pairs, where each key (also called a property) has a value associated with it. Here's a simple example: const person = { name: 'John ...
What are windows object and navigator object in JavaScript? Windows object is top level object in Java script. It contains several other objects such as, document, history, location, name, menu bar etc., in itself. Window object is the global object for Java script that is written at client...
Iterables are data structures whose elements are expected to be publicly accessible. A lot of objects in JS are iterable, they may not be very noticeable, but if you examine carefully, you will find the characteristics of iteration: new Map([iterable]) new WeakMap([iterable]) new Set([ite...
Let's try to understand the usage and working of Promise in JavaScript with the help of following code snippet. Here, we will modify the program of callback hell (briefed in the callbacks article) using the promise objects. Demonstrating promise in javascript:functioni_take_10_sec() {returnn...
What are the Functions in JavaScript? Unlike other programming languages,JavaScript functions are objects. In other words, it is an instance of theFunctiontype. Consequently, it has properties and methods like other objects. Also, the name of a function is merely a pointer that points to the ...
The three dots (...) in JavaScript is known as the spread operator, and it’s used to make shallow copies of JavaScript objects.
It will create 2 different objects,student1andstudent2. But the issue is both of them will have the name Rishabh and the age as 23. The name and age are called properties or attributes of theStudentconstructor. That isn’t very helpful, right? If only we could give custom names and age...
Callback function in JavaScript always makes sure that no function is going to execute before a task is completed but will always run right after the task is executed. These types of functions are responsible for creating interactive and dynamic web pages, as when an event occurs (e.g., a...
Functions are just functions whether they’re named or not.Remember, JScript is a functional language. Functions are objects and can be treated like any other object. You don't have to give an object a name to use it, or you can give them multiple names. Functions are no different. For...