optional chain js code example
Example 1: optional chain operator
const adventurer = {
name: 'Alice',
cat: {
name: 'Dinah'
}
};
const dogName = adventurer.dog?.name;
console.log(dogName);
// expected output: undefined
Example 2: optional chaining in javascript
let myMap = new Map();
myMap.set("foo", {name: "baz", desc: "inga"});
let nameBar = myMap.get("bar")?.name;