AND

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

const url = "{%wasm-url%}";
await WebAssembly.instantiateStreaming(fetch(url), { console }).then(
 (result) => {
 const and = result.instance.exports.and;
 const res = and(0b10000010, 0b01101111);
 console.log(numToBin(res));
 // Expected output: "00000010"
 },
);
function numToBin(num) {
 return (num >>> 0).toString(2).padStart(8, "0");
}

;; Cargar dos números en la tabla
i32.const 5 ;; 00000101
i32.const 3 ;; 00000011
;; ejecutar AND bit a bit
i32.and
;; El nuevo elemento será 1
(00000001)

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This page was last modified on 20 mar 2026 by MDN contributors.