asm.js

An extraordinarily optimizable, low-level subset of JavaScript, intended to be a compile target from languages like C++.

WebAssembly

WebAssembly or "wasm" is a new portable, size- and load-time-efficient format suitable for compilation to the web.

WebAssembly BigInt to i64 conversion in JS API

An extension to the WebAssembly JS API for bidrectionally converting BigInts and 64-bit WebAssembly integer values

WebAssembly Bulk Memory Operations

An extension to WebAssembly adding bulk memory operations and conditional segment initialization

WebAssembly Multi-Value

An extension to WebAssembly allowing instructions, blocks and functions to produce multiple result values

WebAssembly Import/Export of Mutable Globals

An extension to WebAssembly import and export of mutable global variables

WebAssembly Non-trapping float-to-int Conversion

An extension to WebAssembly adding floating-point to integer conversion operators which saturate instead of trapping

WebAssembly Reference Types

An extension to WebAssembly allowing opaque references as first-class types, and multiple tables

WebAssembly Sign Extension Operators

An extension to WebAssembly adding sign-extension operator instructions

WebAssembly SIMD

An extension to WebAssembly adding 128-bit SIMD operations

WebAssembly Threads and Atomics

An extension to WebAssembly adding shared memory and atomic memory operations

api

api: exception

api: global

api: instance

api: linkerror

api: memory

api: module

api: suspending

api: table

api: table: get

api: table: grow

api: table: set

api: tag

api: tag: type

branch-hinting

definitions: tag

fixed-width-simd

instructions: br

instructions: eq

instructions: ge

memory64

multi-value

multimemory

reference-types

relaxed-simd

tail-calls

types: exnref

types: f32

types: f64

types: funcref

types: i32

types: i64

types: v128