lodash-pickall v1.0.1

lodash-pickall

A lodash "mixin" that returns a new object constructed using supplied paths into an existing object. This mixin is inspired from lodash-sift and is more advanced.

Description

Given a data object and a set of paths, _.pickAll() will construct and return a new object composed of only the values found at the selected paths.

Example

var _ = require('lodash-pickAll'); // returns lodash with pickAll mixin

var data = {
    a: 1,
    b: 2,
    c: {
        d: 3,
        e: 4,
        f: {
            g: 5,
            h: 6
        },
        i: [{
                j: 7
            },
            {
                j: [{
                        k: 8
                    },
                    {
                        k: 8
                    },
                    {
                        k: 8
                    },
                    {
                        k: 8
                    },
                    {
                        k: 8
                    }
                ]
            }
        ]
    },
    d: {
        e: 9
    }
};
    
var paths = ['a',
    'b',
    {
        'c': ['d', 'e', {
            'i': ['j', {
                'j': ['k']
            }]
        }],
        'd': ['e'],
        'e': ['f']
    }
]

_.pickAll(data, paths)

// => {a:1,b:2,c:{d:3,e:4,i:[[{j:7},{j:[{k:8},{k:8},{k:8},{k:8},{k:8}]}]]},d:{e:9},e:undefined};

If a path does not exist, it will be undefined in the result, as in:

var data={ a: { b: { c: 1 } } };

_.pickAll(data, [{'a': [{'b':['foo']}]}]) // => { a: { b: { foo: undefined } } }