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Imagine this: you’re neck-deep in a complex Node.js application. The deadline looms, and performance is sluggish. You need an edge, a hidden trick to push your code to the next level. Fear not, fellow developer, for this article dives into professional Node.js hacks for 2024, equipping you with battle-tested techniques to conquer your coding challenges.
Hack #1: Async/Await Streamlining with the Streamlined Operator (?.
)
Ever felt the pain of nested “ .then() ” chains in async/await code? We’ve all been there. In 2024, the optional chaining operator (“ ?. ”) is your new best friend. Let’s see it in action:
async function getUser(userId) {
const user = await db.getUser(userId);
// Traditional approach (prone to errors with undefined values)
if (user && user.profile && user.profile.avatarUrl) {
return user.profile.avatarUrl;
} else {
return null;
}
// Approach using the streamlined operator
return user?.profile?.avatarUrl;
}
The streamlined operator (“ ?. ”) acts as a nullish coalescing operator. It checks if the preceding value is “ null ”or “ undefined ” before attempting to access the next property. This simplifies conditional checks and streamlines your code, making it more readable and less error-prone.