Functional programming

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Beginner Clojure: An Eric Normand Signature Course

Functional programming

Course: Introduction to Clojure v2

Updated January 15, 2019

Let's talk about Functional Programming. Then we can talk about combining ingredient lists.

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We also want to be able to multiply an ingredient list. For instance, if we need to make 3 cakes, we can multiply the ingredients for a cake by 3. That's not quite as easy as adding, but it's not hard. We just need a few more things.

Course: Introduction to Clojure v2

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Lessons

Introducing X5 and JC

Working with the REPL

Defining functions

Defining a bake-cake function

Defining scooped?

Defining squeezed?

Defining simple?

Defining ingredient types

Looping a number of times

Using the plural functions

Variadic functions

Baking with variadic functions

Bake cookies function

Day 1 Conclusion

Running Leiningen projects

Refactoring errors

Bakery locations

Scooped?, squeezed?, and simple? refactor

Fetching ingredients

Fetch ingredients generic

Fetching a shopping list

Refactoring fetch-list

Refactoring locations

A day at the bakery

Analyzing a day at the bakery

Functional programming

multiply-ingredients

order to ingredients

orders to ingredients

Making one shopping trip

Making one delivery

Day 2 conclusion

Baking brownies

Analyzing recipes

Starting the database

Pouring and baking

Adding ingredients

Generic bake function

Adding all recipes

Cleaning up order to ingredients

Ingredients in the database

Refactoring scooped, squeezed, and simple

Generic fetch ingredient

Refactoring fetch-list (again)

Make storage-location more useful

Defining actions

Refactoring perform

Appendix: Creating a Leiningen project