name() function not returning value in javascript class-CodePudding

I am learning about classes in JavaScript. I have created a Student class and defined object inside a constructor function.

class Student {
    constructor(firstName, lastName, age){
        this.firstName = firstName
        this.lastName = lastName
        this.age = age
    }

    name(){
        return `The student's name is ${firstName} ${lastName}`
    }
}

const student1 = new Student('John', 'Carter', '26')

I want to print the statement in cmd written inside name() function that returns a statement. But I am getting nothing when I run the code.

Output I am expecting: The student name is John Carter

CodePudding user response：

You need to use this to access class property

name function return string, so you need to console.log to see the output

class Student {
  constructor(firstName, lastName, age) {
    this.firstName = firstName
    this.lastName = lastName
    this.age = age
  }

  name() {
    return `The student's name is ${this.firstName} ${this.lastName}`
  }
}

const student = new Student('John', 'Carter', 26)

console.log(student.name())

CodePudding user response：

For accessing class properties you have to use this keyword inside a function.

class Student {
    private firstName;
    private lastName;
    private age;
    constructor(firstName, lastName, age){
        this.firstName = firstName
        this.lastName = lastName
        this.age = age
    }

    name(){
        return `The student's name is ${this.firstName} ${this.lastName}`
    }
}

const student1 = new Student('John', 'Carter', '26')
console.log(student1.name())