- TypeScript has a static type system, while JavaScript is a dynamic type language. This means that in TypeScript, variables must be declared with a specific data type (such as string, number, or boolean), while in JavaScript, a variable can be assigned any type of value. For example: JavaScript:
let myVariable = "Hello";
myVariable = 5;
TypeScript:
let myVariable: string = "Hello";
myVariable = 5; // Type '5' is not assignable to type 'string'.
- TypeScript offers better code organization and maintainability through the use of interfaces and classes. These features are not present in vanilla JavaScript, making it harder to structure and organize large code bases. For example: JavaScript:
function createPerson(name, age) {
return {
name: name,
age: age
}
}
TypeScript:
interface Person {
name: string;
age: number;
}
class Person {
constructor(name: string, age: number) {
this.name = name;
this.age = age;
}
}
TypeScript has built-in support for decorators, a feature that allows developers to add additional behavior to existing classes, properties, and methods. JavaScript does not have this feature, and developers would need to use a library or framework to implement it.
TypeScript has better error handling and debugging capabilities due to its static type system. In JavaScript, errors can occur at runtime, making it harder to identify and fix problems in the code. TypeScript's type checking can help developers catch errors before they run the code.
TypeScript is more powerful than JavaScript when it comes to working with large code bases and building complex applications. With features such as interfaces, classes, decorators, and a static type system, TypeScript makes it easier to structure, organize, and maintain code. It also provides better support for modern programming patterns and practices.
🌎🙂😎 Let's Connect!
My Twitter: @muzeyrozcan
My Substack (here I will publish more in-depth articles)
Top comments (0)