@yanick/remeda-extra
v0.1.0
Published
A handful of added functions for Remeda
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@yanick/remeda
This package provides a few functions to the already awesome remeda library that I really want, but wasn't able to get in Remeda itself.
Usage
Just import the additional functions from @yanick/remeda-extra
.
import { pipe } from 'remeda'; // as usual
import { matches } from '@yanick/remeda-extra'; // yanick-themed bonus feature!
Additional functions
matches(target, matcher)
matches(matcher)(target)
Compares the input with the matcher and returns true
if they match.
The matcher can be a function (which will be fed the input and is expected
to return a boolean), or a value. If the value is an object, the matching
will be recursive.
import { pipe } from 'remeda';
import { matches } from '@yanick/remeda-extra';
matches( 'potato', 'potato'); // => true
matches( 'potato', 'turnip'); // => false
matches( 'potato', vegetable => vegetable === 'potato'); // => true
matches({ a: 1, b :2 }, { a: 1 } ); // => true
matches({ 'a': 4, 'b': 5, 'c': 6 }, { 'a': 4, 'c': 6 }) // => true
pipe({a:1,b:2}, R.matches({ a: 1 }) ) // => true
pipe({a:1,b:2}, R.matches({ b: (val) => val < 5 }) ) // => true
pipe({a:1,b:2}, R.matches({ c: 3 }) ) // => false
pipe( { 'a': 4, 'b': 5, 'c': 6 }, R.matches({ 'a': 4, 'c': 6 })) // => true
sample(target, size | { size: number, repeating: boolean })
sample(size | { size: number, repeating: boolean })(target)
Like the sample
that comes with Remeda, but this one shuffles its output
automatically.
Returns random elements of the array. If size
is bigger than the array
length and repeating
is false, returns a number of samples equal to
the size of the whole array.
sample([1,2,3,4],2); // [3,1]
sample([1,2,3,4],{size:5, repeating: true}); // [3,1,2,2,4]
sample([1,2,3,4],{size:5, repeating: false}); // [3,1,2,4]
R.pipe(
[{a: 5}, {a: 1}, {a: 3}],
R.sumBy(x => x.a)
) // 9
R.sample(2)([1,2,3,4]); // [3,1]
R.sample({size:5, repeating: true},[1,2,3,4]); // [3,1,2,2,4]
R.sample({size:5, repeating: false},[1,2,3,4]); // [3,1,2,4]