Regardless of which of these two syntaxes you use, the code does the same thing: defines a variable called FirstName and stores a function in that variable. Because I'm doing this in TypeScript, I'm ...

In TypeScript 1.4, you get type-safe support even when you may be working with multiple types, better type checking when inferring types and aliases for type definitions. TypeScript continues to gain ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Birgitta Böckeler, Distinguished Engineer at ...

TypeScript 5.4, a planned update to the strongly typed JavaScript variant from Microsoft, is now generally available. New capabilities in version 5.4 include preserved narrowing within function ...