How filter array of objects based on objects exists in another array of objects?

Question

I have

array1 = [{ name: sample1 }, { name: sample2 }, { name: sample3 }];
array2 = [{ name: sample1 }, { name: sample2 }];

I want to filter objects of array1 which exists in array2 . So I need to have

[{ name: sample1 }, { name: sample2 }]

How can I get it in javascript?

Answer 1

I guess your objects are not referentially same, so you can try stringifying them and then comparing.

If order of properties can vary then you can consider using a library like lodash<\/a> .

Answer 2

You can use .filter and .some function in JavaScript , Here is the example

const array1 = [{ name: "sample1" }, { name: "sample2" }, { 
name: "sample3" }];
 const array2 = [{ name: "sample1" }, { name: "sample2" }];
let Result = array1.filter(function(obj) {
  return array2.some(function(obj2) {
    return obj.name== obj2.name;
});
}); 
console.log(Result)

Answer 3

You can use object destructuring, the map()<\/code> and .includes()<\/code> methods as shown below: