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Nesne

Nesne is an Object manipulation library.

Installation

    npm i nesne -g

    import Nesne from 'nesne'

Traditional use

    <script src="https://cdn.jsdelivr.net/npm/[email protected]/Nesne.min.js"></script>

License

MIT License

API

.toArray

.toArray( Object )

Converts Object or arguments to Array

   let arr = Nesne.toArray({a: 1,b: 2,c: 3})
   
   console.log(arr) // [1, 2, 3]

.cumul

.cumul( Object, Object, ... )

Combines Objects by summing values.

   let obj   = {a: 8, b: 2, c: 3, d: -2}
    ,  obj2  = {c: 4, d: 1, e: 2}
    ,  final = Nesne.cumul(obj, obj2)
    
    console.log(final) // {a: 8, b: 2, c: 7, d: -1, e :2} // no value loss

.match

.match( obj Object, obj2 Object, fields Array, default )

Transfers values of given fields from obj2 to obj, if value not exists, uses default value

    let obj   = {}
    ,   obj2  = {a: 5, c: 6, d: 16}
    ,   final = Nesne.match(obj, obj2, ['a', 'd', 'e'], 12)
    
    console.log(final) // {a: 5, d: 16, e :2} // e is default

Another default use case

define default values as an Object, use _def to define default value for all not existing keys

    let obj   = {}
    ,   obj2  = {a: 5, c: 6, d: 16}
    ,   final = Nesne.match(
            obj, obj2,
            ['a', 'd', 'e', 'f', 'g', 'h'], {e: 12, _def:10})
    
    console.log(final) // {a: 5, d: 16, e :2, f: 10, g: 10, h:10}

.map

.map( obj Object, map Object, limit Boolean, default )

Creates an Object with key mapping

    let obj   = {a: 5, b: 6, c: 16, d: 18}
    ,   map   = {a: 'b', c: 'a', b: 'c'}
    ,   final = Nesne.map(obj, map)
        
    console.log(final) // {a: 6, b: 16, c: 5, d: 18}

Limit obtained keys

You can also limit obtained keys which is not specified in map argument

    let obj   = {a: 5, b: 6, c: 16, d: 18}
    ,   map   = {a: 'b',c: 'a', b: 'c'}
    ,   final = Nesne.map(obj, map, true)
        
    console.log(final) // {a: 6, b: 16, c: 5} // d is not obtained

Use default value

You can use default value for absent values

    let obj   = {a: 5, b: 6, c: 16, d: 18}
    ,   map   = {a: 'b',c: 'a', b: 'c', e: 'f'}
    ,   final = Nesne.map(obj, map, true, 25)
        
    console.log(final) // {a: 6, b: 16, c: 5, e:25} 
    // obj.f isn't exist, so default value is given to e

License

MIT Copyright Otag