What the exclamation mark does in TypeScript Popular use cases for the TypeScript exclamation mark Performing lookups on an array React refs and event handling The downside of using the exclamation mark in TypeScript Alternatives to using the TypeScript exclamation mark Double exclamation marks !!
The exclamation mark in TypeScript In many scripting languages, developers use the exclamation mark as a not operator. But when working with TypeScript, the exclamation mark acts as a non-null assertion operator. This non-null assertion will remove null and undefined values. In this article, I...