Check if multiple keys exists in json object

Question

I am trying to validate the request object to check if specific keys exist in the object or not. I've tried lodash's has() function, but it seems that _.has() checks nested JSON. Javascript's .hasOwnProperty() takes one key at a time. Is it possible to check an array of keys within a plain JSON object?

The object I am trying to check is

 {
    "name": "[email protected]",
    "oldPassword": "1234",
    "newPassword": "12345"
}

Answer 1

Simply use Object.keys and every

const neededKeys = ['oldPassword', 'name', 'newPassword'];

const obj = {
    "name": "[email protected]",
    "oldPassword": "1234",
    "newPassword": "12345"
}

console.log(neededKeys.every(key => Object.keys(obj).includes(key)));

Answer 2

You can use .includes method of an array and Object.keys will give you an array of all the keys. You can compare this with an array of keys from which you want to check using a loop

var a = {
  "name": "[email protected]",
  "oldPassword": "1234",
  "newPassword": "12345"
};
var key = ["name", "oldPassword", "newPassword"];
Object.keys(a).forEach(e => key.includes(e) ? console.log(e + " found") : console.log(e + " not found"))