Populate nested object from array?

问题:

I have a question, how to create nested object from array? I.e. I have a following array:

var myArr = ['foo', 'bar', 'baz'] and need to make it an object like:

myObj = {foo: { bar: { baz: { } } }}

How can I do that properly?

回答1:

Use reduce()

var myArr = ['foo', 'bar', 'baz'];
var myObj = {};

myArr.reduce(function(a, b) {
  a[b] = {};
  return a[b];
}, myObj);

console.log(myObj);