CodeCombat is an interactive website that teaches you the basics of coding. It does this by using an adventure game to show the player how to code. In this game, you play as a hero of your choice to escape through dungeons and mazes. As you escape you also need to attack goblins and break down doors. All this can be done in game with a set of methods given to you at the start of the level. This website is great for beginners thinking about starting to code because it is fun and it will make people want to start coding. On the other hand, the website doesn't provide much detail on how to code, it just gives you an idea on how it works. This could be a problem for more advanced people who already know JavaScript since they will feel like they aren't learning anything new.
If you are interested on starting to learn JavaScript, this website is right for you. Even though it doesn't go into much detail, it will make newcomers want to start coding. If you want to start learning how to code you can go check out this website here.