JavaScript vs TypeScript

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
Cerca
Categorie
Leggi tutto
Business
How Do Startup CEOs Approach Company Culture and Values?
In the fast-paced world of startups, building products and scaling growth often take center...
By Dacey Rankins 2025-05-01 16:31:45 0 9K
Organizations
Named top 28 largest charitable foundations in the world
The largest charitable foundations in the world are much more than just financial assistance to...
By FWhoop Xelqua 2023-01-29 14:34:06 0 23K
Business
What Is Project Management?
In a world where organizations are constantly striving to deliver results efficiently and...
By Dacey Rankins 2025-05-14 14:18:51 0 5K
Mental Health
ADHD: History
Hyperactivity has long been part of the human condition. Sir Alexander Crichton describes "mental...
By Kelsey Rodriguez 2023-05-08 19:41:00 0 12K
Arts, Culture and Entertainment
Searching for Sugar Man (2012)
Two South Africans set out to discover what happened to their unlikely musical hero, the...
By Leonard Pokrovski 2023-07-10 20:24:48 0 22K

BigMoney.VIP Powered by Hosting Pokrov