JavaScript function to create a structured Object from a String?

Question

Could someone help me to create a JavaScript function that would turn the string below into an Object?

var structure = 'user.location.city';

When ran through the JavaScript function would return an object structured like this:

user: {
  location: {
    city: {}
  }
}

I came up with the code below, but the object is messed up:

var path = structure.split('.');
var tmp_obj = {};
for ( var x = 1; x < path.length; x++ ) {
   tmp_obj[path[x]] = {};
};

I don't know how to add the "city" Object to the "location" Object.

This SO question might be of help stackoverflow.com/questions/7640727/… — Narendra Yadala
– Narendra Yadala, Commented Nov 20, 2011 at 19:08

ThiefMaster · Accepted Answer · 2011-11-20 18:52:02Z

3

var path = structure.split('.');
var tmp_obj = {};
var obj = tmp_obj;
for(var x = 1; x < path.length; x++) {
    tmp_obj[path[x]] = {};
    tmp_obj = tmp_obj[path[x]];
};

answered Nov 20, 2011 at 18:52

ThiefMaster

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2 Comments

ESP32 Over a year ago

This doesn't work for me. plnkr.co/edit/VjFiOGl2AC83HcLGQTJv?p=preview You are not using the "obj" variable? Why don't you count from 0 instead of 1?

ESP32 Over a year ago

An alternative answer can be found here: stackoverflow.com/questions/32029546/…

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