Setup and Prerequisites

To get started with WebAssembly (wasm), some setup is needed. We will be working with Emscripten, a toolchain for compiling to asm.js and WebAssembly. Here's a guideline to set up your environment.

1. Install Emscripten: First, ensure you have the Emscripten SDK installed on your development system. The Emscripten SDK can be installed on Linux, Windows, or MacOS.

2. Path Setup: After installation, ensure that Emscripten's path has been set correctly.

Given that you are a senior engineer with a decent amount of web development coding experience, you are likely to have encountered a setup process like this before; consider it analogous to setting up a Node.js environment, for instance. Think of WebAssembly as another tool in your toolbelt — much like setting up a new library or framework.

Now let's make sure everything works. We can create a simple 'Hello World' program in C++ to validate the settings. As a part of this process, we are going to compile the program and execute it.

Your bug-hunting skills from product design and the problem-solving mindset from computer science will come in handy when dealing with any setup issues. Remember, patience is the key when setting up a new environment! Let's get started.

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#include <iostream>

using namespace std;

int main() {

  cout << "Environment set up successfully";

  return 0;

}