Because WebAssembly exposes itself as a regular JavaScript object, its WebKit implementation can reuse some machinery already in WebKit, including an ECMAScript module used to implement WebAssembly. It cannot, for example, access the DOM without calling into JavaScript, so it is meant to be used with JavaScript. The technology also has the support of the other three major browser vendors: Google, Microsoft, and Mozilla.īut WebAssembly cannot do everything JavaScript does.
With WebAssembly, the hope is that it will boost web application speeds and enable languages other than JavaScript to run in browsers. This is great because it means implementations don’t have to know about how C++ or other languages are optimized,” Barati said.
“The WebAssembly code that the browser sees will already have undergone high-level, language-specific optimizations. Calling WebAsembly a “no-nonsense sidekick to JavaScript,” Apple’s Saam Barati and two colleagues, JF Bastien and Keith Miller, described WebAssembly as a low-level binary format designed to be a suitable compilation target for languages such as C++. The implementation supports WebAssembly on Intel x86-64 and ARM64 processors.
Apple webkit networking full#
WebKit, Apple’s open source browser engine used in Safari, now has a full implementation of WebAssembly. Momentum continues to build for the WebAssembly binary format.
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