star-wars-console

MojiScript Star Wars Console

The Star Wars Console is a good example to show how easy it is to create asynchronous code (axios, readline). It is also easy to interop with JavaScript libraries (in this case node's readline).

Look in index.mjs for examples on how to inject dependencies into your application. This is the entry point to your application.

main.mjs is the meat of your application. You should find some good branching examples with ifElse in there.

Star Wars API provided by https://swapi.co/

Install

# clone repository
git clone https://github.com/joelnet/MojiScript.git

# enter directory
cd MojiScript/examples/star-wars-console

# install dependencies
npm ci

Run

# start quietly
npm start --silent

Answer the prompt Search for Star Wars Character: and you should one of the three outputs depending on your search:

No Search:

Search for Star Wars Character:
No search was performed.

No Results:

Search for Star Wars Character: asdf
0 Results for "asdf".

Search Results:

Search for Star Wars Character: Skywalker
3 results:
- Luke Skywalker (male)
- Anakin Skywalker (male)
- Shmi Skywalker (female)

Dependency Injection

Dependencies are loaded and injected into the main application in index.mjs.

const dependencies = {
  askQuestion,
  axios,
  log
}

run ({ dependencies, main })

Async is easy

Prompting the user for input and then performing an AJAX search is simple.

const main = ({ axios, askQuestion, log }) => pipe ([
  askQuestion ('Search for Star Wars Character: '),
  ifEmpty (showNoSearch) (searchForPerson (axios)),
  log
])

(Excerpt from main.mjs)

Branching logic

ifElse conditions can be reusable...

const ifEmpty = ifElse (isEmpty)

...and a joy to work with.

ifEmpty (showNoSearch) (searchForPerson (axios))

ifEmpty (showNoResults (search)) (showResults)

(Excerpt from main.mjs)