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@lbzg/arrays

Array helper.

Installation & Usage

npm i @lbzg/arrays

Attach to prototype or import Arrays or arr.
fns: add, addUnique, remove, get, getAll, has, count, indices, list

import '@lbzg/arrays'

const x = []

x.arr().add({id: 1})
x.arr().add([{id: 2}, 3, 3])
x.arr().addUnique(1) # does not get added
x.arr().remove(1)

x.arr().getAll() # [{id: 2}, 3, 3]

selector can be a value, an array of values or a function

# get(selector?, key? = 'id')
x.arr().get() # {id: 2}
x.arr().get(1) # undefined
x.arr().get(2) # {id: 2}
x.arr().get(3) # 3
x.arr().get([1, 2, 3]) # {id:2}
x.arr().get(x => x === 3) # 3

x.arr().getAll() # [{id: 2}, 3, 3]
x.arr().getAll(1) # []
x.arr().getAll(2) # [{id: 2}]
x.arr().getAll(3) # [3, 3]
x.arr().getAll([1, 2, 3]) # [{id: 2}, 3, 3]
x.arr().getAll(x => x === 3) # [3, 3]

x.arr().has(2) # true # has(selector?, key?)
x.arr().count() # 4 # count(selector?, key?)
x.arr().indices(1) # [0, 1] # indices(selector, key?)
x.arr().list() # [2] # list(key?)

Prototype

arr(input?)

Takes optional input and returns Arrays instance.
Array.prototype.arr() takes no input.

Arrays

constructor(input?)

add(input): array ~ mutates array
addUnique(input, key?): array ~ mutates array
remove(selector, amount?, key?): array ~ mutates array

get(selector?, key?): value | undefined
getAll(selector?, key?): array
has(selector?, key?): boolean ~ every for value(s); some for function
count(selector?, key?): number
indices(selector, key?): array ~ of matched indexes
list(key?): array ~ object key values

input ~ value or value[]
selector ~ value or value[] or function
key ~ string | number | symbol (object identifier)