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In this very special 50th instalment I share my screen with Allison and we build up a simple web app together. We start with the scariest thing of all, a blank screen, and take it from there.

The web app we build up together is an object visualiser. Our simple web app consists of a text area into which we can enter JavaScript code to define an object, a <div> into which we will render a representation of the object, and a button to trigger the rendering.

Using a Screen Reader? click here.

Just about everything we use in this little exercise is revision, with one exception — we meet JavaScript’s eval() function for the first time. The eval() function takes as an argument a string, and executes it as JavaScript code. For more details, see the MDN documentation.

You can download the final code here.