Web Development Advanced

What is WebAssembly (Wasm)?

A binary instruction format that enables near-native performance execution of code in web browsers alongside JavaScript.

WebAssembly runs compiled code (from C, C++, Rust, Go) in browsers at near-native speed. Unlike JavaScript, Wasm is a low-level binary format that browsers execute efficiently. It complements JavaScript rather than replacing it.

Use cases include gaming engines, image/video processing, CAD applications, scientific simulations, and running existing C/C++ libraries in browsers. WASI extends Wasm beyond browsers to server-side and edge computing.

Related Terms

Server-Sent Events (SSE)

A web technology enabling servers to push real-time updates to browsers over a single HTTP connection, simpler than WebSockets.

JavaScript Object Notation — a lightweight data interchange format that is easy for humans to read and machines to parse.

Software that sits between the request and response in a web application, performing processing like authentication or logging.

Structured Data (Schema.org)

A standardized vocabulary for marking up web content so search engines can understand and display it as rich results.

HTTP headers that control cross-origin resource sharing between different domains, specifying allowed origins, methods, and headers.

A typed superset of JavaScript that adds static type checking, interfaces, and advanced IDE support to JavaScript development.

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