The rationale for template literal types is discussed in the recent blog post about the TS 4.1 Beta. https://devblogs.microsoft.com/typescript/announcing-types

The rationale for template literal types is discussed in the recent blog post about the TS 4.1 Beta. https://devblogs.microsoft.com/typescript/announcing-typescript-4-1-beta/#template-literal-types https://devblogs.microsoft.com/typescript/announcing-typescr...