Swap key,value inside a node.js collections dictionary -

i using node.js collection module. http://www.collectionsjs.com/

i swap key value inside collections dictionary.

to illustrate, here original dictionary.

"use strict"; var dict = require("collections/dict");  var data_type = new dict(     {         "00": "data_0",         "01": "data_1",         "02": "data_2",             }); 

after swapping, new dictionary this;

var data_type_swapped = new dict(     {         "data_0": "00",         "data_1": "01",         "data_2": "02",             }); 

there no duplicate values in original dictionary.

i using node.js v6.

i not familiar library, skimmed documentation , came this:

let dict = require('collections/dict'); let d = new dict({ 'key1': 'value1', 'key2': 'value2' });  d.keys().foreach(key => {     d.set(d.get(key), key);     d.delete(key); // cause trouble if value same key }); 

it iterates through keys, adds new entry identified value of current key, sets value , deletes old key