For V8, Javascript is processed by source code-> AST -> unoptimized temp code, -> optimized binary Code, WebAssembly just ignores all the other steps and goes all the way to the last step.
For V8, Javascript is processed by source code-> AST -> unoptimized temp code, -> optimized binary Code, WebAssembly just ignores all the other steps and goes all the way to the last step.
Yuhui Zhang's Blog 