how to convert object into array of objects (or collection of objects)

Question

Searched and searched, can't find this, but I'm assuming it's easy.

I'm looking for the lodash "object" equivalent of lodash _.pairs() - but I want an array of objects (or a collection of objects).

Example:

// Sample Input
{"United States":50, "China":20}

// Desired Output
[{"United States":50}, {"China":20}]

Answer 1

Would something like this be sufficient? It's not lodash, but...

var input = {"United States":50, "China":20};
Object.keys(input).map(function(key) {
  var ret = {};
  ret[key] = input[key];
  return ret;
});
//=> [{"United States":50}, {"China":20}]

Answer 2

Using lodash, this is one way of generating the expected result:

var res = _.map(obj, _.rearg(_.pick, [2,1]));

The above short code snippet can be confusing. Without using the _.rearg function it becomes:

_.map(obj, function(v, k, a) { return _.pick(a, k); });

Basically the rearg function was used for reordering the passed arguments to the pick method.