Underscore converting object to array of objects

Question

My data currently looks like this:

{ 'Australia' : [ Array[2] ],
  'Bangladesh' : [ Array[7] ],
  etc...}

I could like to convert it to:

[ { 'country': 'Australia',
    'count': 2 },
  { 'country' : 'Bangladesh',
    'count': 7},
  etc...
 ]

What is the easiest way to convert the data?

what do you mean by that?, Wriging converter should't be so hard. Decode this data to an object and later map this object with gson or jacskon or any other JSON mapper to desired format. If you want to convert only one sample of data maybe some specialized textEditor(Sublime, Notepad++ etc) could be helpful. Most of IDE from InteliJ have also such as possibilities — Rafal
– Rafal, Commented Nov 14, 2016 at 14:08

John Poje · Accepted Answer · 2016-11-14 21:34:58Z

2

Using a library like Underscore, you could map the object into the form you're trying to generate:

_.map(_.keys(data), function(key) {
    return { 'country': key, 'count': data[key].length }
});

answered Nov 14, 2016 at 21:34

John Poje

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Winter Soldier · Accepted Answer · 2016-11-14 21:38:26Z

0

Using underscore you may use something like this

var cities = {"Australia" : ["Sydney, Perth"], "US" : ["New York", "Boston"]}
var list = [];
_.each(_.keys(cities), function(countryName){
	list.push({"country" : countryName, "count" : cities[countryName].length})
});
console.log(list)

<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>

answered Nov 14, 2016 at 21:38

Winter Soldier

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