make-tree

Turns an array of strings [ 'grandparent', 'parent', 'child' ] into a tree of objects:

{
    grandparent: {
        parent: {
            child: {
 
            }
        }
    }
}

With one simple function call:

const makeTree = require('make-tree')
 
const child = makeTree([ 'grandparent', 'parent', 'child' ], {})

makeTree(ary, obj)

• ary: an array of strings representing keys. If any of those keys does not exist in the hierarchy, they will be created as an empty object.
• obj: the object to be modified by the creation of new descendants

Returns the final object in the hierarchy represented in the array.

const inputObject = {
    parent: {
        child: {
            baby: 'goo!'
        }
    }
}
 
const child = makeTree([ 'parent', 'child' ], {parent: {child: {baby: 'goo!'}}})
 
console.log(child) // => { baby: 'goo!' }

License

WTFPL