CODEWITHSUNDEEP
javascriptarraysobject
KEKUATAN
KEKUATAN

Reputation: 948

Get same value of nasted Object

i have an object

{eno: Object, sc: Object, r: Object}

each nested Object contain array example

{
    eno :{data:[0,'a','b','3']},
    sc:{data:[0,'a','b','3','f','l']},
    r:{data:[0,'a','b','3','p']},
}

the element of each object is dynamic how can i get same value of each data array element

same value = [0,'a','b','3'] and if there not any same element some value ='nope'

Upvotes: 0

Views: 60

Answers (3)

Alberto Trindade Tavares
Alberto Trindade Tavares

Reputation: 10366

You can use intersection function from Lodash:

var _ = require('lodash');
var sameElements = _.intersection(eno.data, sc.data, r.data);

Upvotes: 0

shaochuancs
shaochuancs

Reputation: 16226

As @Alberto Trindade Tavares' answer said, intersection of lodash can be used to get the same value easily, the code would be very clean. @Alberto Trindade Tavares' answer does not provide a code snippet, and also does not handle the "nope" logic when there is no same value. Thus, I'd like to post a working code snippet as below:

var obj = {
    eno :{data:[0,'a','b','3']},
    sc:{data:[0,'a','b','3','f','l']},
    r:{data:[0,'a','b','3','p']},
}

var sameVal = _.intersection(obj.eno.data, obj.sc.data, obj.r.data);
var sameValDisplay = 'Nope';
if (sameVal.length > 0) {
  sameValDisplay = sameVal.toString();
}
console.log('Same value is: ' + sameValDisplay);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Upvotes: 1

Hassan Imam
Hassan Imam

Reputation: 22534

var commonElements = function(array1, array2) {
  return array1.filter(function(n) {
    return array2.indexOf(n) !== -1;
});
}

var obj = {
    eno :{data:[0,'a','b','3']},
    sc:{data:[0,'a','b','3','f','l']},
    r:{data:[0,'a','b','3','p']},
};

var result = commonElements(obj.eno.data, commonElements(obj.sc.data, obj.r.data)) || 'nope';

console.log('same value :' + result);

/* Solution using map, reduce and filter*/
var res = Object.keys(obj)
.map( o => obj[o].data)
.reduce((a, b) => a.filter(c => b.includes(c)));
console.log('same value :' + res|| 'nope');

Upvotes: 1

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