Never ending flick though circular arrays using next() / prev()
npm install array-flick> Never ending flick though arrays by using next() / prev()
``
$ npm install array-flick
`js
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.
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:
How many steps to flick forward. Defaults to 1.
`js
const names = new Flick('Jim', 'Fin', 'Lin');
names.next() // Jim
names.next(2) // Lin
names.next(2) // Fin
`
#### prev()
Type: Integer
Default:
How many steps to flick backwards. Defaults to 1.
`js
const names = new Flick('Jim', 'Fin', 'Lin');
names.prev() // Lin
names.prev(2) // Jim
names.prev(2) // Fin
`
#### random()
`js``
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
MIT © iilei • Jochen Preusche