Say I have an object:
elmo = { color: \'red\', annoying: true, height: \'unknown\', meta: { one: \'1\', two: \'2\'} };
I want to m
I suggest taking a look at Lodash; it has a lot of great utility functions.
For example pick() would be exactly what you seek:
var subset = _.pick(elmo, ['color', 'height']);
fiddle