TypeScript Basic Constructor

TypeScript Classes and OOP : Exercise-5 with Solution

Write a TypeScript program that creates a class called Student with properties name and class. Implement a constructor that initializes these properties when a Student object is created.

Sample Solution:

TypeScript Code:

class Student {
  // Properties
  name: string;
  className: string;

  // Constructor
  constructor(name: string, className: string) {
    this.name = name;
    this.className = className;
  }
}

// Create a Student object
const myStudent = new Student("Tashina Cihangir", "Class V");

// Access and print the properties
console.log("Name:", myStudent.name);         // Output: Name: Tashina Cihangir
console.log("Class Name:", myStudent.className); // Output: Class Name: Class V

Explanations:

In the exercise above -

• First, we define the "Student" class with properties 'name' and 'className'.
• The constructor for the "Student" class takes two parameters: 'name' and 'className'. Inside the constructor, we initialize the properties using the provided values.
• Next, we create an instance of the "Student" class called 'myStudent' by calling the constructor with specific values.
• Finally, we access and print the properties of the 'myStudent' object to verify that they have been initialized correctly.

Output:

"Name:" "Tashina Cihangir"
"Class Name:" "Class V"

TypeScript Editor:

See the Pen TypeScript by w3resource (@w3resource) on CodePen.

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