In JavaScript, the this keyword is a special context-sensitive variable that refers to the current execution context or the object that a function is bound to at runtime. The value of this depends on how a function is invoked, and it plays a crucial role in determining the context in ...
Compared to other languages, thethiskeyword acts differently in JavaScript. It is one of the most common JavaScript keywords. As confusing as it can be, it is a fundamental concept because it allows for flexibility, reusing a function in multiple contexts. What Is the ‘This’? When you invo...
If JavaScript is not your first programming language, you have probably seen this keyword whenever initiating a class. While exploring objects in JavaScript, you have probably noticed that an object is created with the keyword new.Let’s take a look at an example:Javascript create object with ...
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This keyword is used in creating a loop that gives output to a particular statement until the specified condition returns true. The test condition is evaluated before passing into the loop. The statement executes if the condition is true and when the condition is false, it runs to the next ...
A callback function in JavaScript is a function that is passed as an argument to another function and is invoked after some kind of event.
JavaScript works well with imperative and synchronous code.Let's consider a function findPerson(who) that determines whether a person name is contained in a list of persons:function getList() { return ['Joker', 'Batman']; } function findPerson(who) { const list = getList(); const found ...
The async and await keywords in JavaScript are used for working with asynchronous code in a synchronous-like manner. The async keyword is used to declare a function as asynchronous, which means that it will return a promise. Inside an async function, the await keyword can be used to pau...
The "this" parameter in JavaScript is like that oddly concealed obstacle on a path that keeps tripping people.
Node.js is a highly-scalable event-driven JavaScript environment. In this article, learn more about Node.js, its architecture, how to use it, and m… Reading time 14 min read Updated date November 7, 2023 Post type Knowledge Base Topic JavaScript Frameworks Topic Node.js What Is the Best...