1.9
Nullish coalescing operator
Examples with a Run button are editable. Underlined terms open a short definition.
Nullish Coalescing Operator
// Nullish Coalescing Operator
restaurant.numGuest = 0;
const guests = restaurant.numGuest || 10;
console.log(guests);
// Nullish: null and undefuned (NOT 0 and "")
const guestCorrect = restaurant.numGuest ?? 10;
console.log(guestCorrect);Your last opened chapter is saved in this browser when local storage is available.
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