Javascript - delete object from JSON array [duplicate]

Question

I would like to delete an object from a JSON objects array. Here is the array:

var standardRatingArray = [
    { "Q": "Meal",
      "type": "stars"
    },
    { "Q": "Drinks",
      "type": "stars"
    },
    { "Q": "Cleanliness",
      "type": "stars"
    }
];

For example how can I delete the object whose key is "Q": "Drinks" ? Preferably of course without iterating the array.

Thanks in advance.

Answer 1

You have to find the index of the item to remove, so you'll always have to iterate the array, at least partially. In ES6, I would do it like this:

const standardRatingArray = [
    { "Q": "Meal",
      "type": "stars"
    },
    { "Q": "Drinks",
      "type": "stars"
    },
    { "Q": "Cleanliness",
      "type": "stars"
    }
];

const index = standardRatingArray.findIndex(x => x.Q === "Drinks");

if (index !== undefined) standardRatingArray.splice(index, 1);

console.log("After removal:", standardRatingArray);