Be more careful.

Hey @sethhealy, you need to be a lot more careful about your style, your naming conventions and what you do when pushing things inside of arrays.

I'm not sure how far along you are, but if you know how to use `console.log()` you should do so religiously to check your assumptions about what your code is doing to modify the variables you create and assign.

I would highly recommend trying the `debugger` keyword as well. If you have the Chrome DevTools Console (`Option` + `Command` + `j`) open, this will stop the execution of your code where you placed the keyword and you will be able to play with variables (by typing their name, or assigning them to something else).

I wouldn't necessarily merge this if I were you, instead you should read all the file diffs carefully and try to fix your own version of the `tester.js` file independently. 

Good luck.