📄️ Enums
Learn how to effectively use enums in TypeScript to define readable and maintainable constants, and avoid common pitfalls like performance issues.
📄️ Map
Learn how to use the Map object in TypeScript with proper type annotations to create, manipulate, and iterate over key-value pairs.
📄️ Record
Learn how to use `Record<K, V>` in TypeScript to create strongly-typed object maps, and when it's better than regular objects.
📄️ TypeScript `forEach`
Learn how to use TypeScript `forEach` to iterative over an array effectively, handle asynchronous operations, and implement error handling.
📄️ Arrays
Discover how to use TypeScript arrays to create typed collections, add and filter elements, efficiently iterate, sort objects, merge arrays, and identify duplicates.
📄️ Interfaces
Discover how to define, extend, and implement TypeScript interfaces for type safety, code reusability, and consistent object shapes, while handling optional properties and combining interfaces.
📄️ TS Dictionary
Learn how to use a TypeScript dictionary to create and define key-value pairs, iterate efficiently, handle optional keys, ensure type safety, merge dictionaries, and update values.
📄️ Set
Discover how to utilize TypeScript Set for adding, removing, and checking elements, iterating, converting to arrays, and comparing Sets for equality.
📄️ Function Types
Discover how to define and enforce function types in TypeScript, specify return types, handle optional parameters, and apply generics for robust and flexible code.
📄️ Convert Strings to Numbers
Discover how to use TypeScript string to number conversion methods to accurately parse integers and floats, manage errors, and ensure safe numeric transformations.
📄️ String Interpolation
Discover how to use TypeScript string interpolation for dynamic string formatting, inserting expressions, and efficiently including variables within strings.
📄️ Try/Catch
Learn how to use TypeScript Try-Catch to handle errors effectively in synchronous and asynchronous code, manage specific error types, and implement custom error messages.
📄️ Classes
Learn how to define TypeScript classes, implement inheritance, utilize access modifiers, create interfaces, handle constructors, and leverage abstract and static features.
📄️ Date Handling
Discover how to use TypeScript date to format, compare, convert, calculate differences, add or subtract days, handle time zones, and validate date inputs efficiently.
📄️ Switch Statements
Discover how to use TypeScript switch statements for conditional logic, optimize performance, manage fall-through, and handle default cases efficiently.
📄️ Type Checking
Discover how to use TypeScript check type to determine variable types, verify object types, implement type checking for functions, and create custom type guards.
📄️ Union Types
Discover how to define, check, narrow down, and handle TypeScript union types, along with implementing function overloads, combining with interfaces, and debugging errors.
📄️ Sleep Function
Discover how to use TypeScript sleep to manage asynchronous operations, pause code execution, and implement non-blocking delays with setTimeout.
📄️ Return Types
Discover how to define, manage, and optimize function return types in TypeScript with practical examples covering explicit annotations, type inference, interfaces, unions, promises, and best practices for type-safe code.
📄️ Interface vs. Type
Learn when to use interfaces vs types in TypeScript and leverage the subtle differences to write more maintainable code.
📄️ Multiline Strings
Learn how to properly format multiline strings in TypeScript using template literals for cleaner, more readable code.
📄️ Reduce
Explore TypeScript's reduce method to transform arrays into any data structure you need while maintaining full type safety.
📄️ Instanceof Operator
Learn how to use the instanceof operator in TypeScript for runtime type checking, including practical examples, best practices, and how it complements TypeScript's static type system.
📄️ Map Type
Build flexible generic map types in TypeScript that transform object properties while preserving type safety.
📄️ Spread Operator
Learn how to use the spread operator in TypeScript to merge objects and arrays with proper type definitions and avoid common pitfalls.
📄️ Filtering
Implement type-safe array filtering in TypeScript that preserves the correct return types using built-in methods and custom type guards.
📄️ Hashmaps
Create efficient, type-safe hashmaps in TypeScript using Map objects and interfaces to ensure predictable key-value access patterns.
📄️ Exclamation Mark
Decode the TypeScript exclamation mark (non-null assertion operator) and learn when it's helpful and when it undermines type safety.
📄️ Convert Numbers to Strings
Convert numbers to strings in TypeScript using type-safe methods that work across different numerical formats and locales.
📄️ String Contains
Implement string contains checks in TypeScript with methods that handle edge cases properly while maintaining code readability.
📄️ Regex in TypeScript
Implement regular expressions in TypeScript with proper type checking to ensure your string operations are both powerful and safe.
📄️ Default Parameters
Set default parameter values in TypeScript functions while maintaining type safety and handling edge cases properly.
📄️ Arrow
Write cleaner TypeScript arrow functions with proper type annotations and learn when to use them over traditional function declarations.
📄️ Const
Declare immutable constants in TypeScript with proper type inference and learn the difference between const and readonly.
📄️ Declare
Use TypeScript's declare keyword to provide type definitions for existing JavaScript libraries and global variables.
📄️ Array Map
Transform arrays in TypeScript using map while preserving type safety and creating new typed collections efficiently.
📄️ Key-Value Pair
Model key-value pairs in TypeScript using Record types and interfaces to ensure type-safe object property access.
📄️ Remove Item from Array
Remove elements from TypeScript arrays using type-safe methods that maintain proper array typing and immutability patterns.
📄️ Ternary Operator
Implement conditional logic in TypeScript using ternary operators with proper type narrowing and union type handling.
📄️ Array Filter
Filter TypeScript arrays with type guards that narrow element types and preserve type safety in the resulting collection.
📄️ Tuples
Create fixed-length, ordered collections in TypeScript using tuples to model structured data with precise type definitions.
📄️ Enum to String
Convert TypeScript enums to strings safely while maintaining type information and handling edge cases properly.
📄️ Constructors
Build TypeScript class constructors with parameter properties and proper initialization to create robust object instances.
📄️ Append to Arrays
Add elements to TypeScript arrays using type-safe methods that preserve array typing and handle immutability correctly.
📄️ Promise
Handle asynchronous operations in TypeScript using properly typed Promises with async/await and error handling patterns.
📄️ JSON Type
Parse and validate JSON data in TypeScript with proper type definitions and runtime type checking strategies.
📄️ Lists
Implement list data structures in TypeScript using arrays and custom classes with proper generic type parameters.
📄️ Optional Chaining
Access nested object properties safely in TypeScript using optional chaining to avoid runtime null reference errors.