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JavaScript

Hazim Bora Alap
Hazim Bora Alap
15,001 Points
Posted by Hazim Bora Alap
Hazim Bora Alap
15,001 Points

Object Oriented

I was messing with the code and tried this. I still didn't grasp the difference between objects for some reason but I was trying to convert this example to object oriented way.

'use strict';

let classroom = new Set();

function Student (name, age) { this.name = name, this.age= age }

var steven = new Student( 'Steven',22 ); var sarah = new Student( 'Sarah',23 ); var stevens = new Student( 'Steven', 22 );

if (Student.has(steven)){ console.log( this.name + ' is in the classroom ' + this.age + ' years old') }

When I do this it says .has is not a function. Does that mean, I can't use .has function with constructors?

Thanks,

Kyle Jensen
Kyle Jensen
Courses Plus Student 6,293 Points
Kyle Jensen
Kyle Jensen
Courses Plus Student 6,293 Points

You are using two different types here. One is an object Constructor for the Student object and the other is a new Set for classroom. ".has()" is method of Set(). The way I recall the lesson was that we used object literal notation for creating each student object with key/value pairs and then used the method of Set() called ".add()". so let Steven = {name: 'Steven', age: 22 }; classroom.add(Steven); and then if (classroom.has(Steven)){ console.log( this.name + ' is in the classroom and he is ' + this.age + ' years old') }