Adding Evoluation functionality

Using the PokeAPI we need to fetch the level number at which our pokemon is leveling up and when it hits the level, a prompt should appear on the screen to ask whether we want to evolve it or not.

Possible steps:

• Fetch the level and store it in our pokemon object, something like mypokemon[0].evolvesAt = FetchedIntegerValue
• Create a function that will trigger every time a pokemon levels up, so not all the time but only when it gathers that much exp to go in the next level
• create a prompt to ask for the user's choice and if yes => set the ID to the newer one (generally ID+1)

Helpful things to take a look at

• PokeAPI structure to fetch the JSON data (through XHTTP request in JavaScript)