Filtering Array of JSON objects

Question

I am attempting to filter an array of JSON objects. I am new to JavaScript and trying to do it in coding languages that I used to. Basically, I want to take the following array of objects.

     var result = [
                                {
                                    date : '2016-11-21',
                                    name: 'Bob',
                                    score: 0.1034947
                                },

                                {
                                    date : '2016-10-21',
                                    name: 'Bill',
                                    score: 0.2081911},

                                {
                                    date : '2016-10-21',
                                    name: 'Mary',
                                    score: 0.234947
                                },
                                {
                                    date : '2016-10-21',
                                    name: 'Bob',
                                    score: 0.1034947
                                },

                                {
                                    date : '2016-11-21',
                                    name: 'Bill',
                                    score: 0.2081911},

                                {
                                    date : '2016-11-21',
                                    name: 'Mary',
                                    score: 0.234947
                                },
                                {
                                    date : '2016-12-21',
                                    name: 'Bob',
                                    score: 0.1034947
                                },

                                {
                                    date : '2016-12-21',
                                    name: 'Bill',
                                    score: 0.2081911},

                                {
                                    date : '2016-12-21',
                                    name: 'Mary',
                                    score: 0.234947
                                }




  ]

I then want to filter based on objects. So for example.

var selected_Names = ['Bob','Mary']

I want to return Bob and Mary's information only in this scenario.

 [
                                {
                                    date : '2016-11-21',
                                    name: 'Bob',
                                    score: 0.1034947
                                },



                                {
                                    date : '2016-10-21',
                                    name: 'Mary',
                                    score: 0.234947
                                },
                                {
                                    date : '2016-10-21',
                                    name: 'Bob',
                                    score: 0.1034947
                                },



                                {
                                    date : '2016-11-21',
                                    name: 'Mary',
                                    score: 0.234947
                                },
                                {
                                    date : '2016-12-21',
                                    name: 'Bob',
                                    score: 0.1034947
                                },



                                {
                                    date : '2016-12-21',
                                    name: 'Mary',
                                    score: 0.234947
                                }




  ]

Thanks!

score -1 · Accepted Answer · answered May 04 '17 at 20:37

const result = [{date:'2016-11-21',name:'Bob',score:0.1034947},{date:'2016-10-21',name:'Bill',score:0.2081911},{date:'2016-10-21',name:'Mary',score:0.234947},{date:'2016-10-21',name:'Bob',score:0.1034947},{date:'2016-11-21',name:'Bill',score:0.2081911},{date:'2016-11-21',name:'Mary',score:0.234947},{date:'2016-12-21',name:'Bob',score:0.1034947},{date:'2016-12-21',name:'Bill',score:0.2081911},{date:'2016-12-21',name:'Mary',score:0.234947}];
  
const filterNames = arr => names => arr.filter(e => names.includes(e.name));

const names = ['Bob', 'Mary'];

const res = filterNames(result)(names);

console.log(JSON.stringify(res, null, 2));

Excellent. Thank you so much! – Kulwant May 05 '17 at 00:45 — Kulwant, May 05 '17 at 00:45

Filtering Array of JSON objects

1 Answers1