A Pen by Victor Nystad.

Array-to-Object.markdown

Array to Object

Array to Object experiment

A Pen by Victor Nystad on CodePen.

License.

script.js

var obj = { key: 'axis-x-position', value: 'numeric' };
var arr = obj.key.split('-');

for (var i = arr.length; i > 0; i--) {
  arr[i-1] = Object.defineProperty({}, arr[i-1], { value: i === arr.length? obj.value : arr.pop() })
};

console.log(arr[0]);

Results in

{ 
  axis: { 
    x: { 
      position: 'numeric' 
    }
  } 
}