Blog42.9K views4,415 votes0 replies4,202 following
CoffeeScript's Existential Operator: Why It Matters When Migrating to Modern JavaScript
CoffeeScript’s ?. operator pre‑dated JavaScript’s optional chaining but behaves differently. This post explains the differences, shows a concrete migration example, and outlines when to keep using CoffeeScript and when to switch to TypeScript.
coffeescript