Make comparator from key function or less function.
Comparator is a function that given two arguments a and b returns a number that is:
a precedes b;a and b are effectively equal;b precedes a.Comparators are used in such functions as Array.prototype.sort to set up object ordering.
> ['aaa', 'zz', 'd'].sort(cmpby(a => a.length))
[ 'd', 'zz', 'aaa' ]
> ['aaa', 'zz', 'd'].sort(cmpby.less((a, b) => a.length < b.length ))
[ 'd', 'zz', 'aaa' ]
cmpby([options], keyfn)keyfn :: Object -> Key
Constructs comparator from the key function.
cmpby([options], lessfn)lessfn :: (Object, Object) -> Boolean
Constructs comparator from the less-than function.
cmpby([options])Returns the default comparator.
options.asc| type | default | description |
|---|---|---|
| Boolean | true | If false, inverts comparator |
npm install cmpby
MIT
FAQs
Create comparator from key or less function
We found that cmpby demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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