Uncover the Toughest CSS Interview Questions You Can’t Afford to Miss
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05 Jan, 2025
JavaScript Interview Questions and Answers
A callback function in JavaScript is a function that is passed as an argument to another function and is executed (called back) at a later time, usually after some operation or event has completed. The callback function is typically invoked once a certain task (such as an asynchronous operation) has finished, allowing JavaScript to handle things in a non-blocking, event-driven manner.
05 Jan, 2025
JavaScript Interview Questions with Example
async** and await** are modern JavaScript keywords used to simplify the handling of asynchronous code, making it more readable and easier to manage. They are built on top of Promises and provide a more synchronous-like way to write asynchronous code.
05 Jan, 2025
JavaScript Interview Questions and Answers (2025)
The this keyword in JavaScript refers to the context in which a function is called. Its value depends on how a function is invoked and can change dynamically. It is commonly used to access the properties and methods of the current object, but its behavior varies across different execution contexts.
05 Jan, 2025
JavaScript Interview Questions
JavaScript is a high-level, interpreted programming language primarily used for creating dynamic and interactive content on websites. It is one of the core technologies of web development, alongside HTML and CSS. JavaScript enables features such as interactive forms, animations, real-time updates, and more on the web. It is supported by all modern web browsers and can be used both on the client-side (in the browser) and server-side (with environments like Node.js).
05 Jan, 2025
JavaScript Interview Questions（2024）
In JavaScript, errors are managed using a combination of try-catch blocks , throwing exceptions , and error objects . These mechanisms allow developers to gracefully handle unexpected issues in the code, ensuring that the program doesn't crash and can respond appropriately to errors.
05 Jan, 2025
JavaScript Interview Questions and Answers (2024)
In JavaScript, a closure is a function that remembers and retains access to its lexical scope (the environment in which it was created), even when the function is executed outside that scope.A closure allows a function to access variables from its outer enclosing function even after the outer function has finished execution.
05 Jan, 2025
Most Frequently asked JavaScript Interview Questions
JavaScript handles asynchronous operations using a combination of mechanisms, including callbacks , Promises , and async/await . As JavaScript is single-threaded (meaning it can only execute one task at a time), these mechanisms allow JavaScript to perform tasks like reading files, making HTTP requests, or waiting for timers, without blocking the main thread. This non-blocking behavior ensures that applications can remain responsive, especially in the browser, where operations like UI rendering and event handling should not be delayed.
01 Jan, 2025
Most Frequently asked vue.js Interview Questions (2024)
Vue.js is a progressive JavaScript framework used for building user interfaces, primarily single-page applications (SPAs). It is designed to be incrementally adoptable, meaning you can integrate Vue into projects incrementally or use it for building full-scale applications. Vue's core library focuses on the view layer, making it easy to integrate with other libraries or existing projects.
28 Dec, 2024
Most Frequently asked ajax Interview Questions (2024)
AJAX (Asynchronous JavaScript and XML) is a set of web development techniques that allows a web page to request and receive data from a server asynchronously, without needing to reload the entire page. This results in a more dynamic and faster user experience, as only specific parts of the page are updated.
28 Dec, 2024
Most Frequently asked typescript Interview Questions (2024)
TypeScript is a superset of JavaScript that adds static typing and other features to the language. It was developed by Microsoft to address some of the shortcomings of JavaScript, particularly when it comes to large-scale application development. TypeScript compiles down to regular JavaScript, which can run in any environment where JavaScript is supported (e.g., browsers, Node.js).
25 Dec, 2024