# List Ops Implement basic list operations. In functional languages list operations like `length`, `map`, and `reduce` are very common. Implement a series of basic list operations, without using existing functions. ## Elm Installation Refer to the [Exercism help page](http://exercism.io/languages/elm) for Elm installation and learning resources. ## Writing the Code The first time you start an exercise, you'll need to ensure you have the appropriate dependencies installed. ```bash $ npm install ``` Execute the tests with: ```bash $ npm test ``` Automatically run tests again when you save changes: ```bash $ npm run watch ``` As you work your way through the test suite, be sure to remove the `skip <|` calls from each test until you get them all passing! ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.