QA
Senior LevelHTML & Semantic Web

How do you integrate WebAssembly (WASM) modules into HTML applications?

❓ Interview Prompt: Explain WebAssembly binary modules (.wasm), WebAssembly.instantiateStreaming(), WASM memory buffer sharing, and JS interop.

WebAssembly (WASM) runs compiled low-level C++/Rust code in web browsers at near-native execution speed.

Integration Steps:

1
Fetch and compile WASM binary using 'WebAssembly.instantiateStreaming(fetch("module.wasm"), importObject)'.
2
Invoke compiled WASM exported functions directly from JavaScript!

Code Implementation Example

html
<script type="module">
  const { instance } = await WebAssembly.instantiateStreaming(
    fetch('math-engine.wasm')
  );
  const result = instance.exports.add(40, 2);
  console.log('WASM calculation result:', result);
</script>
💡Streaming and instantiating WebAssembly binary module in HTML script.
🎯 Interview Key Takeaway

Use WebAssembly.instantiateStreaming() to compile and execute near-native WASM modules directly in browsers.

#WebAssembly#WASM#Performance#Senior
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