question mark dot javascript
const adventurer = {
name: 'Alice',
cat: {
name: 'Dinah'
}
};
const dogName = adventurer.dog?.name;
console.log(dogName); //undefined, doesn't return error
const catName = adventurer.cat?.name;
console.log(catName); //Dinahjavascript question mark
//This is what is called a 'Conditional operator'
let result = condition ? value1 : value2
// ^^ ^^ ^^
let result = 1 == 2 ? "YES" : "NO!"
console.log(result) //output: "NO!"
//Basically a short form of an if-else statmentCopyright © 2021 Codeinu
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