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Articles tagged with #javascript
this = most confusing JavaScript concept. What this refer to? Depend on who call function. Caller = this. Understand caller, understand this. This about this keyword and how it change. What this Repr
REST API is a standard way for the client to communicate with the server. Instead of mysterious endpoints like /getUser or /fetchUserData, REST uses predictable HTTP methods and resource-based URLs. O
Map and Set are better ways to store data than objects and arrays. Map stores paired data like objects, but works with any data type as keys. Set stores only unique values, making duplicates impossibl
Node.js handles thousands of requests without freezing because it doesn't wait for operations to finish. While traditional servers lock up during database queries, Node.js continues processing other r
Destructuring lets you extract values from objects and arrays into variables instantly. Instead of writing user.name, user.email, user.age separately, destructuring lets you do it all at once. It's a
Middleware is code that runs between receiving a request and sending a response. It's like a security checkpoint at an airport: every passenger passes through before boarding. Your request passes thro
