Working environment is important while programming. We can use IDE’s like Eclipse, Visual Studio etc. or simple notepad or Browsers integrated text editors.

Scratchpad

In this tutorial we will use Firefox Scratchpad for simplicity. Scratchpad can be accessed from Menu->Developer->Scratchpad

As we see Scratchpad provides saving code, running code, inspecting code and debug. For the whole tutorial these features are enough for us. But if you prefer another tool or IDE its ok too.

We will use latest versions of Chrome, Firefox, etc. . Using latest version is important because the Javascript code will run on the browser.