1
Introduction to Prototypal Inheritance in JavaScript
1m 6s
2
Link to Other Objects through the JavaScript Prototype Chain
2m 34s
3
Prototype Delegation with JavaScript's new Keyword
3m 13s
4
Understanding the .constructor property on JavaScript Objects
1m 51s
5
Understand JavaScripts this keyword within Prototypes
2m 27s
6
Use JavaScript's for-in Loop on Objects with Prototypes
1m 44s
7
Compose Objects with Object.assign to Create a Direct Copy
2m 14s
8
Understanding Prototype Delegation within JavaScript's Class Keyword
2m 51s
9
Assign and Access Methods of a JavaScript Class with Static Properties
1m 17s
10
Determine an Object's Constructor with JavaScripts instanceof Operator
1m 32s
11
Create Factory Functions for Object Composition
2m 48s
12
Use Polymorphism with Prototype Linked Objects
2m 28s
13
Replicate JavaScript Constructor Inheritance with Simple Objects (OLOO)
1m 32s

Determine an Object's Constructor with JavaScripts instanceof Operator

JavaScript

Share this video with your friends

The instanceof operator can be used to figure out which function created an object. However it does have its drawbacks, such as returning false results. In this lesson we'll understand how the instanceof method determines which function created an object and manipulate the results.

Course

Understanding JavaScript's Prototypal Inheritance

Andrew

~ 6 years ago

The constructor keyword isn't explained in these videos. And then in the last 15 seconds of video 10 the code is changed to use the constructor keyword inside the class. It happens way to quickly to grasp what is happening. The rest of the course is really great though!