Web Assembly (and also asm.js) are "closer to the metal" even though they run in the browser. The execution model is meant to map pretty closely to assembly, no

Web Assembly (and also asm.js) are "closer to the metal" even though they run in the browser. The execution model is meant to map pretty closely to assembly, not to JavaScript. The browser is supposed to be doing static verification for security purposes, but not much in the way of optimization.