Filtering object by keys in lodash

Question

I wrote the function below to return all keys in an object that match a specific pattern. It seems really round-about because there\'s no filter function in lodash for objects,

Answer 1

You can use pickBy from lodash to do this. (https://lodash.com/docs#pickBy)

This example returns an object with keys that start with 'a'

var object = { 'a': 1, 'b': '2', 'c': 3, 'aa': 5};

o2 = _.pickBy(object, function(v, k) {
    return k[0] === 'a';
});

o2 === {"a":1,"aa":5}