JavaScript Gems: Useful Functions You Probably Aren’t Using

JavaScript is full of powerful features, but usually developers tend to rely on a small, familiar subset of its capabilities. Key methods cover array & string operations, object hadling, DOM interaction, and asynchronous operations. Beyond the popular methods like map, filter, and reduce, there are functions and APIs that can significantly simplify the code and improve performance. Let’s explore some underrated JavaScript functions and patterns that deserve more attention. 1) Object.fromEntries() method transforms a list of key-value pairs into an object. It’s the reverse of Object.entries() and is perfect for transforming objects. Example: const entries = [['name', 'Alice'], ['age', 25]]; const obj = Object.fromEntries(entries); console.log(obj); // { name: 'Alice', age: 25 } Filtering object properties: const user = { name: 'Alice', age: 25, isUser: false }; const filtered = Object.fromEntries( Object.entries(user).filter(([_, value]) => value !== false) ); console.log(filtere