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JavaScript Object-Oriented JavaScript (2015) Constructor Functions and Prototypes Creating Multiple Instances with Constructors

Posted by Kristian Woods
Kristian Woods
23,414 Points

Do I properly understand the use of the 'this' keyword in constructor functions?

function Student(grade, age, gender) {
    this.grade = grade;
    this.age = age;
    this.gender = gender;
}

/* 
  inside the constructor function, the 'this' keyword refers to the new INSTANCE of the object
 i.e. the new variable name created 

  SEE BELOW:

  new variable created - kris 

  kris.grade = 'A'
  kris.age = 27
  kris.gender = 'male'


*/

let kris = new Student('A', 27, 'male');

console.log(kris);

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

Yes, "this" refers to the object being created.

Since inside the constructor itself, you don't know it by name.

Kristian Woods
Kristian Woods
23,414 Points

Hey! Thanks, Steven