WebAssembly

WebAssembly is a portable, size- and load-time-efficient binary compiler target, which promises near-native performance on the web.

WebKit has a full WebAssembly implementation. it’s a low-level binary format designed to be a suitable compilation target for existing languages such as C++

WebAssembly cannot do everything that JavaScript does. For example, WebAssembly cannot access the DOM except by calling into JavaScript.

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