Learn a strong functional programming language like Clojure with a deep understanding of concepts, mindset, and code conventions.

Clojure, a robust functional programming language, employs the principle of pure coding to enhance code encapsulation, reusability, test coverage, and system maintenance. Its succinct grammar further enhances its capabilities.

Throughout this course, you will delve into the core tenets of functional programming. This foundation ensures a comprehensive grasp of the rationale behind Clojure's approach. You will also immerse yourself in Clojure coding, exploring captivating and illuminating subjects that define its unique functional nature. Moreover, you’ll gain insights into the formidable tools that Clojure seamlessly integrates, including Java libraries.

Clojure stands as a premier choice among functional programming languages. It leverages the Java Virtual Machine (JVM), enjoys wide adoption in the tech industry, and boasts a straightforward setup. Its accelerated learning curve has propelled its growth in the market, making it an invaluable asset for learners to acquire.

Becoming a Functional Programmer with Clojure

The ability of a function to take arguments of different types

The ability of a function to return values of different types

The ability of a function to take on many forms based on its arguments

The ability of a function to become object oriented in Clojure

A function that can dispatch on the type of its arguments

A function that can dispatch on any value, not just its arguments

A function that can dispatch on the namespace it's defined in


A function that can dispatch on the declaration it's defined in

A type of function that can be invoked with multiple sets of arguments

A set of abstract functions that define a common interface for a group of related types


A way to extend the behavior of existing functions without modifying their implementation

A type of function that can be invoked with a single argument type

Using a multimethod to dispatch on the type of a parameter

Defining a protocol to define a common interface for a set of related types

Using a multimethod instead of a case function

Which option is an example of polymorphism?

Which option is an example of polymorphism?

What function is used to implement the protocols at all times?


What function is used to implement the protocols at all times?

`defrecord` + `extend` + `extend-protocol`

`defrecord` + `extend-type` + `extend-protocol`

What combination of functions do you need to use to extend more than one protocol?

What combination of functions do you need to use to extend more than one protocol?

A namespace is a named container for a set of related definitions, such as functions, macros, and data structures.

A namespace is an object class for a set of related definitions, such as functions, macros, and data structures.

A namespace is a data structure used to be instantiated through other namespaces.

A namespace is a named container used solely for the organization in the code.


```
(ns coding-challenge
		(:require (calculator :as calc)))
```

```
(ns coding-challenge
			(:require [calculator as calc]))


```
(ns coding-challenge
	(:require [calculator :as calc]))

```
(ns coding-challenge
       [:require [calculator :as calc]])

When you need to use external namespaces, it's mandatory that you define the namespace you're using and inside it, declare which namespace you want to access. So how would the declaration of a namespace with the name `coding-challenge`, which would refer to all the functions of a `calculator`, be coded? 


When you need to use external namespaces, it’s mandatory that you define the namespace you’re using and inside it, declare which namespace you want to access. So how would the declaration of a namespace with the name <code>coding-challenge</code>, which would refer to all the functions of a <code>calculator</code>, be coded?

```
(ns default-namespace
	(:require [clojure.pprint :refer [pprint]]))

```
(ns default-namespace
	(:require [clojure.pprint :refer (pprint)]))

```
(ns default-namespace
	(:require (clojure.pprint :refer [pprint])))

```
(ns default-namespace
	(:require [clojure.pprint :as [pprint]]))

How would you choose specifically the functions you want to use from a namespace? In your `default-namespace`, you can use the Clojure namespace `clojure.pprint` as the external namespace and `pprint` as the function you want to use.



How would you choose specifically the functions you want to use from a namespace? In your <code>default-namespace</code>, you can use the Clojure namespace <code>clojure.pprint</code> as the external namespace and <code>pprint</code> as the function you want to use.

You use the whole path that the file is stored in and the name of the file, e.g., if the file is in `com/some_example/my_namespace.clj`, the namespace will be `com.some_example.my_namespace`.

You use the name of the file, switching `_` to `-`, e.g., if the file is in `com/some_example/my_namespace.clj`, the namespace will be `my-namespace`.

You use only the path that the file is stored in, switching `_` to `-`, e.g., if the file is in `com/some_example/my_namespace.clj`, the namespace will be `com.some-example`.

You use the whole path that the file is stored in and the name of the file, switching `_` to `-`, e.g., if the file is in `com/some_example/my_namespace.clj`, the namespace will be `com.some-example.my-namespace`.


Test your knowledge of multimethods, protocols, records, extends, and namespaces.


Introduction

Functional Programming (FP)

A Short History of Clojure

Data Structures

Functions

Multimethods, Protocols, Records, and Namespaces

Clojure and Its Macros

Concurrency and Parallelism Support

Clojure Unit Testing

Java Interop

Writing a Clean Clojure Code

Bank Account Activities

Conclusion

Quiz: Multimethods, Protocols, Records, and Namespaces