Leveraging WebAssembly for High-Performance TypeScript Applications

{
  "title": "Leveraging WebAssembly for High-Performance TypeScript Applications",
  "description": "Learn how to compile TypeScript code to WebAssembly to achieve near-native performance in web applications.",
  "category": "TypeScript Cursor Rules",
  "rules": [
    {
      "name": "Use AssemblyScript for TypeScript to WebAssembly Compilation",
      "description": "Utilize AssemblyScript, a TypeScript-like language, to compile code to WebAssembly efficiently.",
      "implementation": [
        "Install AssemblyScript: `npm install -g assemblyscript`",
        "Initialize an AssemblyScript project: `npx asinit .`",
        "Write TypeScript code in the `assembly/` directory",
        "Compile to WebAssembly: `npm run asbuild`"
      ]
    },
    {
      "name": "Ensure Type Safety and Performance",
      "description": "Leverage AssemblyScript's strict type system to write safe and performant code.",
      "implementation": [
        "Use explicit type annotations for all variables and functions",
        "Avoid using `any` type to maintain type safety",
        "Utilize AssemblyScript's standard library for optimized operations"
      ]
    },
    {
      "name": "Integrate WebAssembly Module into JavaScript",
      "description": "Load and use the compiled WebAssembly module within your JavaScript application.",
      "implementation": [
        "Fetch the `.wasm` file using `fetch` API",
        "Instantiate the WebAssembly module using `WebAssembly.instantiate`",
        "Access exported functions from the instantiated module"
      ]
    },
    {
      "name": "Optimize WebAssembly Performance",
      "description": "Apply best practices to ensure the WebAssembly module runs efficiently.",
      "implementation": [
        "Minimize the use of dynamic memory allocation",
        "Use fixed-size arrays and data structures when possible",
        "Profile and benchmark the WebAssembly module to identify bottlenecks"
      ]
    },
    {
      "name": "Handle WebAssembly Limitations",
      "description": "Be aware of and address the limitations and differences between WebAssembly and JavaScript.",
      "implementation": [
        "Understand that WebAssembly does not have direct access to the DOM",
        "Use JavaScript interop to manipulate the DOM or perform I/O operations",
        "Manage memory manually, as WebAssembly does not have garbage collection"
      ]
    }
  ]
}