In Chrome, JavaScript runs on the V8 Engine, but what is the engine that runs WebAssembly code?
How is the browser suddenly able to give improved performance with WebAssembly? Is this WebAssembly engine always available in browser, or has it been added to browsers recently?
WebAssembly is a new web standard instruction set that is executed by the browser. Within Chrome WebAssembly runs within V8 https://v8project.blogspot.com/2016/03/experimental-support-for-webassembly.html?m=1