only-nested
Return on the whitelisted properties of an object, similar to only, but with support for nested properties.
Installation
$ npm isntall only-nested --save
Usage
var only = var whitelist = a: null b: x: null y: null var obj = a: 1 b: x: 2 y: 3 z: 4 c: 5 /*-> { a: 1, b: { x: 2, y: 3 }}*/
Arrays of Objects
The only()
function also supports whitelisting keys of objects in an array.
This is expressed in the whitelist by having an array with a whitelist object as
the first element.
var whitelistWithArray = a: x: null var objWithArray = a: x: 1 y: 2 x: 3 y: 4 z: 5 /*-> { a: [ { x: 1 }, { x: 3 } ]}*/
Partial Application
If you call only()
with a whitelist as the only argument, it returns a
partially applied function which takes a source object as its only argument.
var onlyWhitelist =
It works great with map()
.
someArrayOfObjects