JavaScript Internals (521 Qs)•Part 6: Async Internals, Memory, Microtasks & Web APIs (329 - 403)
What is the easiest multi condition checking
You can use indexOf to compare input with multiple values instead of checking each value as one condition.
javascript
// Verbose approach
if (
input === "first" ||
input === 1 ||
input === "second" ||
input === 2
) {
someFunction();
}
// Shortcut
if (["first", 1, "second", 2].indexOf(input) !== -1) {
someFunction();
}