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How WebAssembly Works

Explore how WebAssembly works by running low-level compiled code inside browsers for better performance and security. Learn about its integration with JavaScript and benefits in web development, including how Blazor simplifies WebAssembly programming using C# for efficient front-end applications.

Traditionally, if we needed to implement any logic in the browser, we would use JavaScript. It is a powerful multi-purpose language, but it has one major drawback: JavaScript is an interpreted language, which means that it’s stored in its original form, and it gets compiled into the low-level machine instructions as it’s being read. This makes it unsuitable for applications that require high performance, such as resource-demanding video games or complex modeling software.

WebAssemblyCompiled code running in the browser (often abbreviated as WASM) is a technology that was designed ...