(module  (func (export "or") (param $a i32) (param $b i32) (result i32)    ;; load both numbers onto the stack    local.get $a    local.get $b    ;; `or` both numbers and return the result    i32.or  ))

const url = "{%wasm-url%}";await WebAssembly.instantiateStreaming(fetch(url), { console }).then(  (result) => {    const or = result.instance.exports.or;    const res = or(0b10000010, 0b01101111);    console.log(numToBin(res));    // Expected output: "11101111"  },);function numToBin(num) {  return (num >>> 0).toString(2).padStart(8, "0");}

;; load two numbers onto the stacki32.const 5   ;; 00000101i32.const 3   ;; 00000011;; perform a bitwise ORi32.or;; the top item on the stack will now be 7 (00000111)

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This page was last modified on⁨Nov 23, 2025⁩ byMDN contributors.