Check and get data from an array in JavaScript

Question

I have an object:

var Obj1 = {id: 1, name: 'Apple'}

And an array object:

var ArrObj = [ {id: 1, name: 'Apple', 'eat': 'rice}, {'id: 2', 'name': 'Banana'}]

How do I check Obj1.id in ArrObj? And I want the result to be: { id:1, name: 'Apple', 'eat':'rice'}

Possible duplicate of Loop through array of objects, check for a matching parameter and add the matching object to new array — Mamun
– Mamun, Commented Jul 24, 2018 at 8:58

Ankit Agarwal · Accepted Answer · 2018-07-24 12:00:35Z

12

You can use Array.find():

var Obj1 = {id: 2, name: 'Banana'}
var ArrObj = [ {id: 1, name: 'Apple', 'eat': 'rice'}, {'id': 2, 'name': 'Banana'}];
var res = ArrObj.find(({id}) => id === Obj1.id );
console.log(res);

You can also use array destructuring way like:

var Obj1 = {id: 2, name: 'Banana'}
var ArrObj = [ {id: 1, name: 'Apple', 'eat': 'rice'}, {'id': 2, 'name': 'Banana'}];
var res = ArrObj.find(({id}) => id === Obj1.id);
console.log(res);

edited Jul 24, 2018 at 12:00

answered Jul 24, 2018 at 8:58

Ankit Agarwal

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3 Comments

Ankit Agarwal Over a year ago

@hieuphamba glad to help. You can tick mark the answer if it was helpful.

SandroKSG Over a year ago

second answer doesn't work right now (it just returns the first element with a truthy id value)

Ankit Agarwal Over a year ago

@SandroKSG it does now

Peter Mortensen · Accepted Answer · 2018-07-24 13:48:15Z

3

You could also use the filter function like this:

let result = ArrObj.filter(obj => {
  return obj.id == Obj1.id
})

Documentation is here: Array.prototype.filter()

edited Jul 24, 2018 at 13:48

Peter Mortensen

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answered Jul 24, 2018 at 9:46

SylvainF

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Comments

user10156441 · Accepted Answer · 2018-07-30 19:40:25Z

0

all right! you can also add array and get it by code :

var obj = '{ "name" : "amr" , "age" : "16"}';
var obj1 = JSON.parse(obj);
alert("yourname is : "+obj1.name+" , your age is "+obj1.age);
// it get name > amr and age > 16

it's very easy :)

answered Jul 30, 2018 at 19:40

user10156441

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