CODEWITHSUNDEEP
javascriptarrays
H Min
H Min

Reputation: 81

Javascript find Array elements within Array of Objects values without a for loop

Is it possible to look for arr elements in arrofobjs without a for loop? Since 'Buddy' is in both arr and arrofobjs, i'd expect found to return true

var arrofobjs = [ { type: 'Dog', name: 'Buddy', color: 'White' },
  { type: 'Cat', name: 'Misty', color: 'Black' },
  { type: 'Dog', name: 'Max', color: 'Black' }, ]
var arr = [ 'Buddy', 'Oscar' ]
var found = Object.values(arrofobjs).some(r=> arr.includes(r)) //returns false, but would return true if arrofobj was an object

Upvotes: 3

Views: 1693

Answers (3)

Narendra Jadhav
Narendra Jadhav

Reputation: 10262

You could also use Array.prototype.find() method of array to find the record in array.

DEMO

var arrofobjs = [ { type: 'Dog', name: 'Buddy', color: 'White' },
  { type: 'Cat', name: 'Misty', color: 'Black' },
  { type: 'Dog', name: 'Max', color: 'Black' }],
  arr = ['Buddy', 'Oscar'];
  
arr.forEach(v=>console.log(arrofobjs.find(({name})=>name==v)||`${v} Not fond`));
.as-console-wrapper {max-height: 100% !important;top: 0;}

Upvotes: 2

Mihai Alexandru-Ionut
Mihai Alexandru-Ionut

Reputation: 48367

You have to access the name property.

var arrofobjs = [ { type: 'Dog', name: 'Buddy', color: 'White' },
  { type: 'Cat', name: 'Misty', color: 'Black' },
  { type: 'Dog', name: 'Max', color: 'Black' }, ]
var arr = [ 'Buddy', 'Oscar' ]
var found = Object.values(arrofobjs).some(r => arr.includes(r.name))
console.log(found);

Since arrofobjs is an array, you can directly apply the some method by using destructing.

var arrofobjs = [ { type: 'Dog', name: 'Buddy', color: 'White' },
{ type: 'Cat', name: 'Misty', color: 'Black' },
{ type: 'Dog', name: 'Max', color: 'Black' }, ]
var arr = [ 'Buddy', 'Oscar' ]
var found = arrofobjs.some(({name}) => arr.includes(name))
console.log(found);

Upvotes: 5

Nikhil Aggarwal
Nikhil Aggarwal

Reputation: 28455

You were almost there. As arrofobjs is an array, you can directly iterate over it.

var arrofobjs = [ { type: 'Dog', name: 'Buddy', color: 'White' },{ type: 'Cat', name: 'Misty', color: 'Black' },{ type: 'Dog', name: 'Max', color: 'Black' }];
var arr = [ 'Buddy', 'Oscar' ];
var found = arrofobjs.some(({name})=> arr.includes(name));
console.log(found);

Upvotes: 2

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