array-flick

Never ending flick though arrays by using next() / prev()

Install

$ npm install array-flick

Usage

const Flick = require('array-flick');
 
const flick = new Flick(1,2,3)
 
flick.next(); // 1
flick.next(); // 2
flick.next(); // 3
flick.next(); // 1
flick.next(); // 2
flick.prev(); // 1
flick.prev(); // 3
flick.prev(); // 2
 
flick.random() // one of 1,2,3
 

Note there is also a setter for randomFn. again, useful for testing / seeding. Look at the specs to learn more.

API

new Flick(...values)

Behaves like an Array with next and prev methods added.

When writing database seeders and tests this expressiveness-sugar helps to make the intentions of the program easily recognizable.

next()

Type: Integer Default: 1

How many steps to flick forward. Defaults to 1.

const names = new Flick('Jim', 'Fin', 'Lin');
 
names.next()  // Jim
names.next(2) // Lin
names.next(2) // Fin

prev()

Type: Integer Default: 1

How many steps to flick backwards. Defaults to 1.

const names = new Flick('Jim', 'Fin', 'Lin');
 
names.prev()  // Lin
names.prev(2) // Jim
names.prev(2) // Fin

random()

const xos = new Flick(...(Array(99).fill('x').concat('o')));
xos.randomFn = () => 0.999; // generate your own (seeded) random floats 0..1 here
xos.random() // 'o'

Returns a random entry

randomFn (setter)

Useful for reproducible random return values, for example with the help of seedrandom

Contributing

License

MIT © iilei • Jochen Preusche