JavaScript array of object find property values if/Else if condition

Question

I've an array of object and check for property values and based on it i need to perform some operation

const arr= [
    {
        "id": "1",
        "name": "Skoda - Auto",
        "operation": "ADD"
    },
    {
        "id": "2",
        "name": "BMW - Auto",
        "operation": "DELETE"
    },
    {
        "id": "3",
        "name": "Mustang",
        "operation": "DELETE"
    }
]

 if (arr.some(e => e.operation === 'ADD')) {
  console.log('will do some operation if its add')
 }
 else if(arr.some(e => e.operation === 'DELETE')) {
 console.log('will do some operation if its delete')
 }
 else {}

I tried the above way but it just does not enter else if block, not sure what wrong I'm doing, can someone plz help on this

Answer 1

I think what you're actually looking for is a simple loop that does a check forEach() item car in your array arr. .some() checks whether any item in your array matches a given condition.

const arr = [
  {
    id: "1",
    name: "Skoda - Auto",
    operation: "ADD"
  },
  {
    id: "2",
    name: "BMW - Auto",
    operation: "DELETE"
  },
  {
    id: "3",
    name: "Mustang",
    operation: "DELETE"
  }
];

arr.forEach(car => {
  if (car.operation === "ADD") {
    console.log("will do some operation if its add");
  } else if (car.operation === "DELETE") {
    console.log("will do some operation if its delete");
  } else {
    // implementation
  }
});