filtero

Fileter an object by your own rule (function) which received keys and values of the object as parameters. Returns a filtered new object.

Install

npm i filtero -S

Syntax

filtero(obj, compareFunction [, thisArg])

obj

Target object to be filtered

compareFunction

A function that defines the filtering rule. It will have key and value as parameters while iterating the object. If the function returns a truthy value. The current key/value pair will be reserved in the returning object, and vice versa.

thisArg [optional]

The value of this provided for the call to compareFunction.

Usage

import filtero from 'filtero'

const obj = {
  a: 1,
  b: 2,
  c: 3,
  d: 'D'
}

filtero(obj, (k, v) => k === 'a')
// { a: 1 }

filtero(obj, (k, v) => ['b', 'c'].indexOf(k) >= 0)
// { b: 2, c: 3 }

filtero(obj, (k, v) => typeof v === 'string')
// { d: 'D' }