JavaScript vs TypeScript

0
8Кб

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
Поиск
Категории
Больше
Business
How Do I Create Financial Projections for a Business Plan?
Creating financial projections is one of the most critical steps in building a business plan....
От Dacey Rankins 2024-12-19 15:00:57 0 11Кб
Parliamentary Procedure
Navigating the Chambers: The Importance of References in Parliamentary Procedure
Navigating the Chambers: The Importance of References in Parliamentary Procedure Parliamentary...
От Leonard Pokrovski 2024-05-22 19:40:28 0 14Кб
Business
What role does storytelling play in a business biography?
torytelling is one of the most powerful tools in writing a business biography. A well-crafted...
От Dacey Rankins 2025-01-08 13:58:22 0 8Кб
Социальные проблемы
Невероятная история Острова роз. Rose Island. (2020)
Инженер-идеалист Джорджо Роза решил построить независимое государство и создал искусственную...
От Nikolai Pokryshkin 2022-10-04 16:59:43 0 21Кб
Auctions
Unveiling the Thrills and Intricacies of Auctions: A Deep Dive into the World of Bid and Hammer
Unveiling the Thrills and Intricacies of Auctions: A Deep Dive into the...
От Leonard Pokrovski 2024-05-30 00:17:04 0 20Кб
image/svg+xml


BigMoney.VIP Powered by Hosting Pokrov