Understanding TypeScript's Data Types

TypeScript, an open-source language built on JavaScript, provides sophisticated and practical tools for static typing. Static typing in TypeScript allows developers to check and analyze their code for bugs before execution. For this very reason, TypeScript supports different data types such as Boolean, Number, and String.

Boolean

In TypeScript, Boolean is a basic data type. It can have two values: true or false. Boolean data types are primarily used for logical decisions. It's essentially like a light switch which can have two positions - On (true) or Off (false). Here's an example:

let isOnline: boolean = false;

String

Another fundamental data type in TypeScript is the String data type. It's used to store sequences of characters or texts. The String data type in TypeScript is similar to JavaScript's string-type.

Here's an example of how to define a string variable in TypeScript:

let name: string = "Jack";

Number

TypeScript supports numeric values as Number data type. You can assign integer, hexadecimal, decimal, binary, and octal values to a number type variable in TypeScript.

Let's give an example here:

let age: number = 16;

In conclusion, understanding TypeScript's data types is crucial for writing efficient and bug-free code. Developers have to correctly specify and handle the data types including Boolean, String, and Number to prevent type-related issues. Utilizing TypeScript's type checking, we can guarantee that the variables in the code are behaving as they should, enabling us to develop more reliable and robust applications. Furthermore, it makes code more readable and manageable, lessening the chance of unexpected bugs in the future.