raylib-wasm/docs/examples/core/core_basic_window.js

Make raylib games in JS for the web

const InitGame = async () => {
  InitWindow(800, 450)
}

const UpdateGame = (ts) => {
  BeginDrawing()
  ClearBackground(RAYWHITE)
  DrawText("Congrats! You created your first window!", 190, 200, 20, LIGHTGRAY);
  DrawFPS(10, 10)
  EndDrawing()
}