walk-object-sync

Walks an object's keys, calling a function when each node is reached. Walk will be performed synchronously. Excludes the async version of walkObject for compatibilty with ES6 and below.

Example

const walkObject = require('walk-object-sync')

const obj = {
  order: {
    number: 123,
    customer: {
      name: 'John Smith'
    },
    items: [
      {
        sku: 456,
        description: 'shirt'
      },
      {
        sku: 789,
        description: 'pants'
      }
    ]
  },
}

walkObject(obj, ({ value, location, isLeaf }) => {
  if (isLeaf) console.log(value, location)
})

//
123, ['order', 'number']
'John Smith', ['order', 'customer', 'name']
456, ['order', 'customer', 'items', 0, 'sku']
'shirt', ['order', 'customer', 'items', 0, 'description']
789, ['order', 'customer', 'items', 1, 'sku']
'pants', ['order', 'customer', 'items', 1, 'description']

Installation

npm install --save walk-object-sync

API

walkObject(root, fn)

param: {object} root - The object to walk.

param: {function} fn - Function to call on each node.

The function will be passed an object with the following properties:

value: {any} - The value of the current node.

key: {string} - The key for the current node. If node is an element of an array key will be in the format of key:index. See walk-object.test.js for an example.

location: {array} - The full location of the current node (see examples above).

isLeaf: {boolean} - Whether or not the node is a leaf.

Test

npm test

License

MIT