deeputil

#deeputil

deeputil is a tiny node.js module that provides a few recursive functions for dealing with keys/values of deeply nested objects.

###Install

npm i deeputil

###Docs

deeputil.key(obj)

• obj {Object}
• @return {String} the property name of obj

const du = require('deeputil')

var someobj = {username: 'foo'}
console.log(du.key(someobj))
// result -> 'username'

deeputil.keys(obj)

• obj {Object}
• @return {Array<String>}

returns an array of all the keys of obj no matter how deeply nested!

const du = require('deeputil')

var someobj = {
  ...
}
console.dir(du.keys(someobj))

deeputil.vals(obj)

• obj {Object}
• @return {Array<Object>}

returns an array of all the key/value pairs of obj.

const du = require('deeputil')

var someobj = {
  ...
}
console.dir(du.vals(someobj))

deeputil.readStream(obj)

• obj {Object}

• @return {stream.Readable} a readable stream

• data {Object} {key:'', val: }

streams all key/value pairs of obj

const du = require('deeputil')

var someobj = {
  ...
}

du.readStream(someobj).on('error', (err) => {
  console.error(err)
}).on('data', (dat) => {
  console.log('key:', dat.key)
  console.log('value:', dat.val)
}).on('end', () => {
  console.log('finished successfully.')
})

deeputil.find(obj, key)

• obj {Object}

• key {String} the key to find its corresponding value

• @return {typeof found value | Array<typeof found value>}

• if only one item found, returns the found value

• if more than one item with the same key found (like in an array), returns an array of found values

const du = require('deeputil')

var someobj = {
  data: [{username:'plugh', id: 17}, {username: 'thud', id: 92}],
  baz: {
    qux: {
      garply: 'waldo',
      quux: ['corge', 'grault']
    }
  }
}

console.log(du.find(someobj, 'qux'))
// result -> { garply: 'waldo', quux: [ 'corge', 'grault' ] }

console.log(du.find(someobj, 'garply'))
// result -> waldo

console.log(du.find(someobj, 'quux'))
// result -> [ 'corge', 'grault' ]

console.log(du.find(someobj, 'username'))
// result -> [ 'plugh', 'thud' ]