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818What Are Template Literal Types?
819Basic Template Literal Syntax
820Combining String Literal Types
821Template Literals with Union Types
822Prefix and Suffix Patterns
823Multi-Part Template Patterns
824Template Literals with Primitives
825Restricting String Shapes
826Type-Safe String Building
827Template Literals in Generic Types
828Limitations of Template Literals
829Practical Use Cases Overview
830The Four Built-In String Manipulation Types
831Uppercase<T> for Full Capitalization
832Lowercase<T> for Full Lowercasing
833Capitalize<T> for First Character Only
834Uncapitalize<T> for First Character Lowering
835Combining Intrinsics with Template Literals
836Case Conversion for API Keys and Conventions
837Intrinsics with Mapped Types
838Limitations of Intrinsic String Types
839Performance and Complexity Considerations
840Mapping Keys to Template Literal Types
841Dynamic Property Name Generation
842Prefixing and Suffixing Object Keys
843The Getters Pattern
844The Setters Pattern
845Event Handler Type Generation
846Key Remapping with as and Template Literals
847Conditional Key Generation
848Nested Property Path Generation
849Type-Safe Action Creators
850HTTP Method Types from Routes
851Real-World Pattern: Form Field Types
852Constructing Path Unions from Object Keys
853Recursive Path Types for Deep Objects
854Type-Safe Route Parameters
855Inferring Route Params from Path Strings
856Building URL Builder Functions
857Type-Safe Query String Builders
858Path Autocomplete in Routing Libraries
859Validating HTTP Method and Path Combinations
860Type-Safe Navigation with Next.js-Style Routes
861Dynamic Segment Extraction
862Catch-All and Optional Route Segments
863Type-Safe Link Components
864API Client Path Generation
865Practical Limits of Path Type Complexity

818What Are Template Literal Types?
819Basic Template Literal Syntax
820Combining String Literal Types
821Template Literals with Union Types
822Prefix and Suffix Patterns
823Multi-Part Template Patterns
824Template Literals with Primitives
825Restricting String Shapes
826Type-Safe String Building
827Template Literals in Generic Types
828Limitations of Template Literals
829Practical Use Cases Overview
830The Four Built-In String Manipulation Types
831Uppercase<T> for Full Capitalization
832Lowercase<T> for Full Lowercasing
833Capitalize<T> for First Character Only
834Uncapitalize<T> for First Character Lowering
835Combining Intrinsics with Template Literals
836Case Conversion for API Keys and Conventions
837Intrinsics with Mapped Types
838Limitations of Intrinsic String Types
839Performance and Complexity Considerations
840Mapping Keys to Template Literal Types
841Dynamic Property Name Generation
842Prefixing and Suffixing Object Keys
843The Getters Pattern
844The Setters Pattern
845Event Handler Type Generation
846Key Remapping with as and Template Literals
847Conditional Key Generation
848Nested Property Path Generation
849Type-Safe Action Creators
850HTTP Method Types from Routes
851Real-World Pattern: Form Field Types
852Constructing Path Unions from Object Keys
853Recursive Path Types for Deep Objects
854Type-Safe Route Parameters
855Inferring Route Params from Path Strings
856Building URL Builder Functions
857Type-Safe Query String Builders
858Path Autocomplete in Routing Libraries
859Validating HTTP Method and Path Combinations
860Type-Safe Navigation with Next.js-Style Routes
861Dynamic Segment Extraction
862Catch-All and Optional Route Segments
863Type-Safe Link Components
864API Client Path Generation
865Practical Limits of Path Type Complexity

Lesson 821 of 1,796·19. Template Literal TypesPro lesson

Template Literals with Union Types

When unions are embedded in templates, TypeScript generates the cartesian product of all possible string combinations.

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