Typescript 4.1 Beta Brings Template Literal Types Here

TypeScript 4.1 also introduced to support these new capabilities: Uppercase Lowercase Capitalize Uncapitalize

: They enable the creation of type-safe dot notation for accessing nested object properties and parsing router parameters (like :userId ) to ensure they match expected formats. TypeScript 4.1 beta brings template literal types

Template literal types bring the syntax of JavaScript's template strings (using backticks and ${} ) into type positions. While standard string literal types define a variable as holding a specific, fixed string, template literal types allow for the of new string types by concatenating existing ones. Key Syntax and Composition TypeScript 4