What does "object destructuring" mean and what is the result of a destructuring operation?Say you have an object with some properties:const person = { firstName: 'Tom', lastName: 'Cruise', actor: true, age: 57 }You can extract just some of the object properties and put them into ...
By: Rajesh P.S.The "=>" symbol is used in JavaScript to define arrow functions. An arrow function is a shorthand for writing anonymous functions (functions without a name) in JavaScript. Arrow functions provide a more concise syntax compared to regular function expressions and do not have ...
By: Rajesh P.S.In JavaScript, null is a primitive value that represents the intentional absence of any object value. It's often used to indicate that a variable or property intentionally holds no value or that an object reference points to nothing. null is a distinct value from undefined ...
JS is the short form for JavaScript. JavaScript or JS is a general-purpose programming language that can be used for web development and server-side development. Popularly JavaScript is referred to as JS. Want to learn coding? Try our new interactive courses. ...
Is there enum in JavaScript? Enums are not supported in JavaScript natively. We can however create Enums using Object. freeze by creating objects containing all the enumerable properties and then freezing the object so that no new enum can be added to it. ...
Learn what is Vue JS, a powerful and easy-to-learn JavaScript framework for building user interfaces and single-page applications. Read more in this blog.
Abstraction means that hiding implementation code that is not necessary for use by other objects. This helps make it easier for developers to change or add to objects over time. Polymorphismmeans that an object can mean or be used differently in different contexts. ...
JavaScript In the example above, when we passobj.greetingas a callback to the functionsayHello(), itsthiskeyword loses itsthisbinding toobjand points to the global object.this.greetis not referring toobj—instead it is referring to the global object. This can be solved by using thebind()me...
ExpressJS and NodeJS are different from each other in many ways, some of them are: NodeJS is a JavaScript runtime that provides a platform for executing JavaScript code on the server side.ExpressJS, on the other hand, is a web framework built on top of NodeJS that provides a suite of...
JavaScript is anobject-oriented language, allowing developers to create complex features on web pages, such as real-time content updates, interactive forms, animations, and multimedia handling. It runs on the client side, meaning it is executed by the user'sweb browser, which reduces the load on...