Lodash find array in array

Question

I have an array that looks like this:

   var roles = [ 
           { "label": "Super Auditor", "value": 4 }, 
           { "label": "Super Finance Officer", "value": 3 }, 
           { "label": "Super Manager", "value": 2 }, 
           { "label": "Super Admin", "value": 1 } 
   ]

I need to find if it is in array and get that object.

var needToFind = [4, 1]

Expected Results:

var results =[
              { "label": "Super Auditor", "value": 4 }, 
              { "label": "Super Admin", "value": 1 } 
            ]

I just don't know how to do it. TY

Ori Drori · Accepted Answer · 2019-02-24 10:23:48Z

2

You can use _.intersectionWith():

var roles = [ 
  { "label": "Super Auditor", "value": 4 }, 
  { "label": "Super Finance Officer", "value": 3 }, 
  { "label": "Super Manager", "value": 2 }, 
  { "label": "Super Admin", "value": 1 }
]

var needToFind = [4, 1]

var result = _.intersectionWith(roles, needToFind, (a, b) => a.value === b)

console.log(result)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"></script>

answered Feb 24, 2019 at 10:23

Ori Drori

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Isaac · Accepted Answer · 2019-02-24 08:21:37Z

2

Here's an answer using VanillaJS

const roles = [ 
           { "label": "Super Auditor", "value": 4 }, 
           { "label": "Super Finance Officer", "value": 3 }, 
           { "label": "Super Manager", "value": 2 }, 
           { "label": "Super Admin", "value": 1 } 
];


const needToFind = [4, 1];

const results = roles.filter(obj => needToFind.includes(obj.value))

console.log(results)

Basically you apply filter on roles and using includes to see if value exist in needtoFind

answered Feb 24, 2019 at 8:21

Isaac

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