Create a dynamic nested object from array of properties

Question

This sounds like a simple task, but I can\'t quite figure it out: I have an array :

var array = [\'opt1\',\'sub1\',\'subsub1\',\'subsubsub1\']

Answer 1

You can use reduceRight to transform the array into a 'chain' of objects:

const array = ['a', 'b', 'c'];
const object = array.reduceRight((obj, next) => ({[next]: obj}), {});

// Example:
console.log(object); // {"a":{"b":{"c":{}}}}