JavaScript vs TypeScript
Posted 2023-05-26 21:10:06
0
10K
Difference between TypeScript and JavaScript
JavaScript and TypeScript look very similar, but there's one important distinction.
The key difference between JavaScript and TypeScript is that JavaScript lacks a type system. In JavaScript, variables can haphazardly change form, while TypeScript in strict mode forbids this. This makes TypeScript easier to manage and maintain, especially with a large codebase.
JavaScript vs. TypeScript example
TypeScript's type system has a minor impact on how variables are referenced and declared, yet it has a huge impact on maintainability and consistency.
For example, here is how to declare numeric- and text-based variables in JavaScript:
let foo = 1
let bar = "text"
bar = 123 // allowed in JavaScript
Here are the same variables declared and initialized in TypeScript:
let foo: number = 1
let bar: string = "text"
bar = 123 // not allowed in TypeScript
Search
Categories
- Arts
- Business
- Computers
- Games
- Health
- Home
- Kids and Teens
- Money
- News
- Recreation
- Reference
- Regional
- Science
- Shopping
- Society
- Sports
- Бизнес
- Деньги
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
Read More
Kinder Joy
Kinder Joy (formerly known as Kinder Merendero in Italy and Bahrain) is a candy made by Italian...
Navigating the Complexities of Transgender Identity: Understanding, Acceptance, and Empowerment
Navigating the Complexities of Transgender Identity: Understanding, Acceptance, and Empowerment...
Exploring the Vital Role of Publications: A Gateway to Knowledge
Exploring the Vital Role of Publications: A Gateway to Knowledge
In the realm of academia,...
How Do You Balance Innovation with Market Demand?
Innovation is often described as the heartbeat of business success, but it doesn’t occur in...