Searching in

Enter search term to find items
to navigate, to select, and to close

TypeScript 4.4: Control Flow Analysis

Posted on by Nithin Mohan TK 1 min read

TS 4.4 is smarter. It can now analyze aliased conditions.

function foo(arg: string | unknown) {
  const isString = typeof arg === "string";
  if (isString) {
      console.log(arg.toUpperCase()); // Works in 4.4!
  }
}

Discover more from C4: Container, Code, Cloud & Context

Subscribe to get the latest posts sent to your email.

Posted in Uncategorized

Leave a comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.