array-hash-upsert

Add or update a value in an array/hash pair

Install

$ npm install --save array-hash-upsert

Usage

var Upsert = require('array-hash-upsert')

var array = []
var hash = {}

var upsert = Upsert(array, hash)

upsert({id: 1})
upsert({id: 2})
upsert({id: 1, foo: 'bar'})

console.log(hash) // => {1: {id: 1, foo: 'bar'}, 2: {id: 2}}
console.log(array) // => [{id: 1, foo: 'bar'}, {id: 2}]

API

ArrayHashUpsert(array, hash, [idKey]) -> upsertFn

array

Required Type: array

hash

Required Type: object

idKey

Type: string Default: 'id'

The key used to tell whether a value exists yet.

upsert(value)

value

Required Type: object

Adds the value if its id is not in the hash.

Otherwise, mutates the existing object in the array/hash to match the passed in value.

Related / Recommended

• array-key-hash

License

MIT © Andrew Joslin