Javascript terms

2 terms of 1444 total

⚡ From DOM manipulation to async superpowers

JavaScript has evolved from a scripting curiosity into a full-stack language powering browsers, servers, and everything in between. This category covers the language core — closures, prototypes, async patterns, the event loop, modern ES2024+ features — as well as runtime behaviour that trips up developers at every experience level. Understanding JavaScript deeply means fewer bugs and more confident code.

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Object.freeze / Object.seal ES5

Object.freeze() prevents all property changes (add/modify/delete), Object.seal() prevents add/delete but allows modification — both are shallow, not deep.

2mo ago javascript intermediate

Optional Chaining & Nullish Coalescing ES2020

?. short-circuits to undefined if a property is null/undefined; ?? returns the right-hand value only when the left is null or undefined — together they replace most null guard code.

2mo ago javascript intermediate