TypeScript Sintaksia na Aina za Data: Mwongozo wa Kina

Azimio la Kubadilika

Ili kutangaza vigeu katika TypeScript, tunatumia let au const maneno muhimu.

Kwa mfano: let num: number = 10; au const message: string = "Hello";

 

Primitive Data Types

TypeScript inasaidia primitive data types kama vile number, string, boolean, null, na undefined.

Kwa mfano: let age: number = 25; ,, let name: string = "John"; let isActive: boolean = true;

 

Array

Ili kutangaza safu katika TypeScript, tunatumia type[] sintaksia au Array<type>.

Kwa mfano: let numbers: number[] = [1, 2, 3, 4, 5]; au let names: Array<string> = ["John", "Jane", "Alice"];

 

Object

Ili kufafanua aina ya data ya kitu, tunatumia {} sintaksia na kubainisha aina ya kila sifa iliyo ndani yake.

Kwa mfano:

let person: {   
  name: string;   
  age: number;   
  isEmployed: boolean;   
} = {  
  name: "John",  
  age: 25,  
  isEmployed: true  
};  

 

Function

TypeScript huturuhusu kufafanua aina ya data ya vitendakazi.

Kwa mfano:

function add(a: number, b: number): number {  
  return a + b;  
}  

 

Hii ni baadhi ya mifano ya syntax ya msingi ya TypeScript na inayoungwa mkono data types, including primitive types, arrays, objects, and functions.

TypeScript hutoa uwezo wa kupanua sintaksia na kuauni aina changamano zaidi za data ili kutosheleza mahitaji yako ya usanidi wa programu.