Make a resultant array with comparing two arrays

Question

I have 2 arrays like

let arr1 = [
  {id:1, name:'hhj'},
  {id:12, name:'ghdgj'},
  {id:5, name:'gd'}
  ]

let arr2 = [
{id:1, addr:'fsfhg'},
{id:8,addr:'rgdh},
{id:5, name:'gd'}
]

I want a resultant array by comparing two arrays id like,

resultarr =[{id:1, name:'hhj'}
   {id:5, name:'gd'}]

let names=[hhj,gd]

I want this names in seperate array

Does this answer your question? [How to compare arrays in JavaScript?](https://stackoverflow.com/questions/7837456/how-to-compare-arrays-in-javascript) — nice_dev, Aug 23 '22 at 11:39
Ok but the essence remains the same. [This thread](https://stackoverflow.com/questions/1885557/simplest-code-for-array-intersection-in-javascript) is more focused with your use-case. — nice_dev, Aug 23 '22 at 11:45

score 1 · Accepted Answer · answered Aug 23 '22 at 11:43

1

If you want to obtain the objects whose id is in both arrays, you could do this:

let result = array1.filter(el1 => array2.some(el2 => o1.id === el2.id));

answered Aug 23 '22 at 11:43

victorperezpiqueras

308
1
11

I udated my question.Can you please check it? – Lex V Aug 23 '22 at 11:55
You can use the Array.map function to return only the names of the elements of the resulting list like ```let names = array.map(elem => elem.name)``` – victorperezpiqueras Aug 23 '22 at 21:03

score 0 · Answer 2 · answered Aug 23 '22 at 11:42

0

your expected result is incorrectresultarr =[{{id:1, name:'hhj'}}]

in the first object you must set property like

resultarr =[{foo: {id:1, name:'hhj'}}]

answered Aug 23 '22 at 11:42

amirreza mojarad

187
3

Make a resultant array with comparing two arrays

2 Answers2