TypeScript Methods

Key Features of TypeScript:

Static Typing: TypeScript introduces static typing, ensuring that the type of a variable cannot change during program execution. This significantly reduces the chances of bugs and enhances code reliability. Clear type annotations help developers understand the purpose of variables and functions, leading to improved readability. Compatibility with JavaScript: Your existing JavaScript code is also valid in TypeScript. This means you can gradually adopt TypeScript in your projects without rewriting everything. TypeScript code is transpiled to JavaScript, making it easy to integrate into existing JavaScript applications. Type Inference: TypeScript infers types based on context, reducing the need for explicit type annotations. This allows developers to write cleaner code while still benefiting from static typing. Advanced Language Features: TypeScript supports modern ECMAScript features (ES6, ES7, etc.) and provides additional features like interfaces, classes, modules, and decorators. It allows developers to write more maintainable and organized code by enforcing best practices....

Why TypeScript?

While JavaScript’s flexibility shines in quick prototyping, large-scale projects benefit from the structure and predictability TypeScript offers. Here’s when TypeScript excels:...

Text Editors with TypeScript Support

Visual Studio Code with the TypeScript extension WebStorm Sublime Text with the Anaconda plugin...

TypeScript Tutorial

Prerequisites: Before you start this typescript tutorial, It’s recommended you should have a basic understanding of javascript and object-oriented programming....

TypeScript Basics

Data types Arrays String How to install TypeScript ? Hello World How to compile a Typescript file ? Variables Identifiers and Keywords in TypeScript Numbers Keyof Type Operator Union Object Class Tuples Object Extending Types Indexed Access Types Mapped Types Type assertions Method Overriding Accessor Inheritance Generics Interface Rest Parameters Ambients Declaration Duck-Typing...

TypeScript Advance

Generic Object Types Call Signatures Declaring this in a Function Constraints Construct Signatures Generic Parameter Defaults Unknown Function Non-null Assertion Operator (Postfix !) Type Object Type Optional Properties Conditional Types Object Type readonly Properties strictNullChecks on Type strictNullChecks off Type Exhaustiveness checking Writing Good Overloads Aliases Type Specifying Type Arguments Literal Inference Type Interfaces Type Return type void...

TypeScript Utility Type

Partial Record Awaited Required Omit Pick Extract Capitalize Lowercase ConstructorParameters ReturnType Creating Types from Utility Type Exclude Uncapitalize Template Literal Type...

TypeScript Functions

toFixed() Function toLocaleString() Function toPrecision() Function...

TypeScript Methods

Number valueOf() Method Array toString() Method toExponential() Method...

TypeScript Array Methods

reduce() Method forEach() Method map() Method filter() Method splice() Method concat() Method push() Method sort() Method slice() Method some() Method indexOf() Method join() Method every() Method unshift() Method pop() Method reverse() Method shift() Method lastIndexOf() Method reduceRight() Method...

TypeScript String Methods

split() Method replace() Method concat() Method substring() Method toString() Method toUpperCase() Method toLowerCase() Method indexOf() Method toString() Function slice() Method with example search() Method substr() Method localeCompare() Method Length Property Prototype Property valueOf() Method Constructor Property lastIndexOf() Method charAt() Method toLocaleLowerCase() Method charCodeAt() Method toLocaleUpperCase() Method...

Advantages of Using TypeScript

TypeScript offers static typing, which allows developers to define types for variables, parameters, and return values. TypeScript detects errors at compile-time rather than runtime, allowing developers to catch issues early in the development process. TypeScript has a rich ecosystem of tools and libraries that enhance the development experience. It adopts the basic building blocks of your program from JavaScript. All TS code is converted into its JS equivalent for the purpose of execution. The support for Classes and Objects is also one of the main reasons for its increasing popularity as it makes it easier to understand and implement OOPS concepts as compared to the standard prototype-based implementation provided by native JavaScript....

TypeScript Vs JavaScript

TypeScript JavaScript Provides static typing Dynamically typed Comes with IDEs and code editors  Limited built-in tooling Similar to JavaScript, with additional features  Standard JavaScript syntax Backward compatible with JavaScript  Cannot run TypeScript in JavaScript files Stronger typing can help identify errors  May require more debugging and testing...

FAQs on TypeScript Tutorial

What is TypeScript?...