JavaScript vs TypeScript

0
8K

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
Cerca
Categorie
Leggi tutto
Business
CONSULTING AS ONE OF THE MOST EFFECTIVE WAYS TO MANAGE A BUSINESS
Business consulting involves the cooperation of companies with professionals in a certain field,...
By Dacey Rankins 2024-07-23 08:40:35 0 11K
Business
The benefits of the video blogger business: how to turn a hobby into income
What is the business of video bloggers and how to start a career Video blogging has long grown...
By Dacey Rankins 2024-09-11 12:04:19 0 9K
Arts, Culture and Entertainment
Ratatouille. (2007)
A rat who can cook makes an unusual alliance with a young kitchen worker at a famous Paris...
By Leonard Pokrovski 2023-04-18 19:54:59 0 22K
Cultures and Groups
Understanding Cultures: Diversity, Identity, and the Tapestry of Humanity
Culture is the essence of what makes a group of people unique. It encompasses the shared beliefs,...
By Dacey Rankins 2024-11-07 16:38:01 0 9K
Business
What is a Lean Business Plan?
In the world of business planning, traditional, lengthy documents are being replaced by more...
By Dacey Rankins 2024-12-19 15:09:19 0 9K
image/svg+xml


BigMoney.VIP Powered by Hosting Pokrov