inner-join

v0.9.6

STATUS

Passing

DOWNLOADS

VISIBILITY

Public

PUBLISHED

5 years ago

SIZE

N/A

Takes a predicate `pred`, a list `xs`, and a list `ys`, and returns a list

Compare

List

Utils

1 contributor

Install inner-join as a package?

Copied

npm i @bit/justin-capalbo.ramda.inner-join

Set Bit as a scoped registryLearn more

npm config set '@bit:registry' https://node.bit.cloud

Component Example

React

Vue

Angular

React Native

Add dependency...

Just

import

any of the 1 million components

and packages in Bit or NPM to the example.

import Button from '@bit/grommet.grommet.button';
import Lodash from 'lodash';

No preview available

modifieddraft

innerJoin (

pred:Function,

xs:Array,

ys:Array

) : Array

Takes a predicate pred, a list xs, and a list ys, and returns a list xs' comprising each of the elements of xs which is equal to one or more elements of ys according to pred.

pred must be a binary function expecting an element from each list.

xs, ys, and xs' are treated as sets, semantically, so ordering should not be significant, but since xs' is ordered the implementation guarantees that its values are in the same order as they appear in xs. Duplicates are not removed, so xs' may contain duplicates if xs contains duplicates.

Example

R.innerJoin(
       (record, id) => record.id === id,
       [{id: 824, name: 'Richie Furay'},
        {id: 956, name: 'Dewey Martin'},
        {id: 313, name: 'Bruce Palmer'},
        {id: 456, name: 'Stephen Stills'},
        {id: 177, name: 'Neil Young'}],
       [177, 456, 999]
     );
     //=> [{id: 456, name: 'Stephen Stills'}, {id: 177, name: 'Neil Young'}]

Arguments

pred: Function

xs: Array

ys: Array

Returns

Array