Viewing: developer.mozilla.org

Syntax

var myMemory = new WebAssembly.Memory(memoryDescriptor);

Parameters

memoryDescriptor

._ initial _ : WebAssembly Page WebAssembly .

maximum Optional: WebAssembly WebAssembly . maximum . . WebAssembly maximum .

: WebAssembly 65,536 64KiB .

Exceptions

memoryDescriptor object TypeError .
maximum initial RangeError .

`Memory` instances

Memory Memory() prototype object . Memory .

Instance properties

Memory.prototype.constructor: . WebAssembly.Memory() .
Memory.prototype.buffer: .

Instance methods

Memory.prototype.grow(): WebAssembly ( 64KB ) .

Examples

WebAssembly.Memory . JavaScript . 10 (640KiB) 100 (6.4MiB) WebAssembly .

var memory = new WebAssembly.Memory({ initial: 10, maximum: 100 });

WebAssembly.Memory WebAssembly . (GitHub memory.html . ) WebAssembly.instantiateStreaming() memory.wasm . . .

WebAssembly.instantiateStreaming(fetch("memory.wasm"), {
  js: { mem: memory },
}).then((obj) => {
  var i32 = new Uint32Array(memory.buffer);
  for (var i = 0; i < 10; i++) {
    i32[i] = i;
  }
  var sum = obj.instance.exports.accumulate(0, 10);
  console.log(sum);
});