Package Exports
- slice-foo
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Readme
slice-foo
Slices foo
any way you'd like
Install
$ npm install --save slice-fooWritten in ES6 and uses generators so you'll need Node 6 or a transpiler to use it.
Usage
const sliceFoo = require('slice-foo')
sliceFoo.slice([4, 4, 4, 4], '4040414142424343')
//=> ['4040', '4141', '4242', '4343']
// It's curried so you can do compose functions like
const parseCardNumber = sliceFoo.slice([4, 4, 4, 4])
parseCardNumber('4040414142424343')
//=> ['4040', '4141', '4242', '4343']
parseCardNumber('4040414142')
//=> ['4040', '4141', '42']
parseCardNumber('40404141')
//=> ['4040', '4141']
// easily join into the format you'd like
parseCardNumber('4040414142424343').join(' ')
//=> '4040 4141 4242 4343'- sliceWith functions to specify chunk sizes dynamically, see API.
Read the tests to see how it behaves.
API
Note:
Sliceable: A type that implements .slice (eg. Array and String)
.slice
slice :: [Number] -> Sliceable -> [a]
Slices a sliceable into chunks specified by an array of numbers
const sliceFoo = require('slice-foo')
sliceFoo.slice([4, 4, 4, 4], '4040414142424343')
//=> ['4040', '4141', '4242', '4343'].sliceWith
sliceWith :: (() -> Number) -> Sliceable -> [a]
Slices a sliceable into chunks using a function
const sliceFoo = require('slice-foo')
let i = 0
const getChuckSize = () => {
if (i++ % 2 === 0)
return 4
else
return 2
}
sliceFoo.sliceWith(getChuckSize, '4040414142424343')
//=> ['4040', '41', '4142', '42', '4343'].sliceWithGenerator
sliceWithGenerator :: (function* -> Number) -> Sliceable -> [a]
Slices a sliceable into chunks using a generator
const sliceFoo = require('slice-foo')
function* chunkGenerator () {
let n = 0
while (n++ < 2)
yield 4
}
sliceFoo.sliceWithGenerator(chunkGenerator, '4040414142424343')
//=> ['4040', '4141']Why?
I needed a module to format strings and found most modules do too many things. It's built to be useful on it's own and composed into more specific functions. Aaand I wanted to publish my first open source project ☝️
License
MIT © Sindre Seppola