Search for a command to run...
Articles tagged with #javascript-interview-question
Expert-Level Explanation In ES6, the spread operator (...) allows an iterable, such as an array, to be expanded in places where zero or more arguments (for function calls) or elements (for array literals) are expected. The rest operator (...), while ...
Expert-Level Explanation Web Workers in JavaScript allow for running scripts in background threads, separate from the main execution thread of a web application. This helps in performing tasks that require intensive computation without blocking the u...
Expert-Level Explanation WebSockets provide a way to establish a persistent, two-way communication channel between a client and a server over a single, long-lived connection. Unlike traditional HTTP requests that are stateless and close after a respo...
Expert-Level Explanation Local storage and session storage are web storage solutions for storing key-value pairs in a web browser. Local storage persists data even when the browser is closed and reopened, whereas session storage keeps data for a sing...
Expert-Level Explanation Fetch API and AJAX (asynchronous JavaScript and XML) are used for handling asynchronous HTTP requests in JavaScript. Fetch API, a modern approach introduced in ES6, uses Promises to handle responses and provides a more powerf...
Expert-Level Explanation The Browser Object Model (BOM) in JavaScript is used to interact with the browser. It includes objects like window, which represents the browser window, andlocation, which represents the URL. You can use BOM to get details ab...