It's common in React that an element is rendered before all its variables are defined, with final rendering being correct. To prevent fatal errors we usually use the ? operator as suggested in the response to Question by coding:
const property1 = object?.property1
rather than:
const property1 = object.property1 or const { property1 } = object
This approach doesn't work when the object is an array of objects, for instance if I want to preempt a fatal error in react while my array is undefined, I can't use:
const property1 = array?[0]?.property1
since it is syntactically incorrect (should it be?), so I am using:
`const property1 = array && array[0]?.property1`
Is that the correct way?
Daniel Beck corrected an error in my original question, that is now fixed indicating that an alternative way to handle this situation would be:
const uid = array ? array[0].uid : undefined
You can use Array.isArray() method to determine whether the passed value is an Array or not.
Working Demo :
let obj = {
property1: 'alpha'
};
const property1 = Array.isArray(obj) ? obj[0]?.property1 : obj.property1;
console.log(property1);