JavaScript is synchronous (By default)

By default - JavaScript is synchronous. That means it runs code line-by-line, one after another.
Blocking: Each line must complete before the next starts
But wait... it also supports asynchronous programming using callbacks, Promises, and async/await!
That’s how it handles things like API calls without freezing your app.
Cool right? That’s the power of JS + the Event Loop.
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Written by

Shubhradeep
Shubhradeep
Full-Stack Developer with 1.5 years of experience building scalable, secure web applications using React, Node.js, and PostgreSQL. Skilled in REST APIs, backend architecture, authentication (JWT/JWE), and modern frontend tools. Proven ability to enhance system efficiency, SEO, and user experience.