Ways to retrieve the value of an Object that may have a key that is undefined

Is there a method similar to Angular's $parse service that can be used for accessing nested object properties?

Consider an object structure like this:

const obj = {
  items: [
    {
      store: {
        type: ''
      }
    }
  ]
};

Scenario: The keys 'items', 'store', and 'type' may be undefined or non-existent.

If I want to retrieve the type of the first item, my current approach is:

const firstItem = obj.items[0] || {};
const store = firstItem.store || {};
const type = store.type || 'computer';

I believe there could be a more efficient way to achieve this. Are there methods similar to Angular's $parse service or any other suggestions? Thank you!

Answer №1

Reasons to avoid try catch statements.

let category;
try {
    category = product.list[0].type.category;
}
catch {
    category = 'electronics';
}

Answer №2

if(angular.isDefined(obj))
{
   if(angular.isArray(obj.items)){
       // Perform a specific action
   }
}

Do you require any further assistance?

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