1. Practice using forEach
2. Practice passing functions as callbacks

You'll be editing index.js and running tests as usual.

• Define a function, iterativeLog(), that accepts an array. Call .forEach() on this array, and inside the callback, log each element with the format ${index}: ${element}.
• Define a function, iterate, that accepts a callback. Within the iterate() function, you should initialize an array — it can contain anything you want. Call .forEach() on this array, passing the callback to .forEach(). Then return the array that you initialized.
• Define a function, doToArray that accepts an array and a callback. Call .forEach() on the array, passing the callback as the forEach callback.

Remember, you can run the tests using mocha.run() in the browser if you'd like — then read the results, refresh the page, and keep going afterwards.

• forEach()

View forEach() Lab on Learn.co and start learning to code for free.