What is Constructor Function in JavaScript? - JS Tutorial

What are Constructor Functions in JavaScript?

JavaScript Constructor Functions from the series "10 Things JS Developers Should Know"

This is episode 4 in a 10 part series I’m calling 10 things javascript developers should know but probably don’t. In this series, we’re going to cover some of the most fundamental and important parts of JavaScript that most of us don’t actually know, and barely touch. Today, for episode 4, we’re talking about Constructors and Constructor Functions, the idea behind them, the problem they solve, and how they're different from Factory Functions. Episode 4: Constructor Functions. Let’s go!

All the code from this series is available here:

0:00:00 Intro
0:01:04 What is a Constructor Function?
0:02:57 The concept
0:05:30 The code
0:09:53 Another example
0:15:49 Summary
0:16:48 Outro

[ColorCode-io]

What is a Constructor Function in JavaScript? 🎉🕺🏻👨🏻‍💻

[paulam.moyano]

I am watching every chapter with the same excitement (and anxiety) as a breaking bad episode. Awesome teaching, thanks 🤯👏

[TheCinematicTola]

Coolest teacher on YouTube, live the explanation

[princessceballos]

I'm not sure what i'm more impressed by, your editing or the explanations. Ivy-league like quality education for FREE! Thank you.

[davidwilson-brown]

This is super clean. I'm hooked. The layout, the lighting, the pace for new coders (which I definitely am) are spot on. Thanks for creating great content wrapped in a professional package. It really makes a difference.

If anyone is thinking of subscribing or liking, just stop thinking. Subscribe. Like. Done.

[hrahman]

This needs 100x more views then it does. Looking forward to the rest of the series when you upload it. Great work!

[michalfigiel]

I don`t know how far I will get with my coding but your content did come out at the right moment for me! Thanks a lot!

[danielwilberforce]

Best tutorials on the internet, Production is A1 brother. Thanks!!!

[censoretti]

i wanna really thank you, i pass all day long trying to undertand 'this', and you explain like a god, and blow my mind, thanks, keep the good work, please

[ndavid]

I been on the self taught route and these videos have been by FAR the best out there. Thank you for what you do, WE SEE AND APPRECIATE YOU!

[hunin]

This tutorial is made so well!! I'm learning javascript from Bro Code but i got a bit stuck on classes, your explanation is amazing!!

[ankurgupta]

I request all the viewers to do like and comment the videos, because the content is really awesome, I am loving the Javascript after watching his videos

[EiandGiSix]

GREATE GREAT GREAT THEACHER! Evertything in your video is really accurate, from the graphic the music and timing! it's really rare find people that teach the way you do! Go on! and Thank you!

[alex_blue]

I'm so hooked on this series. Top notch content and presentation.

[michaeljohnson]

So Sina...I've gone over objects like 4 times and this is the first time I'm seeing that objects create a 'this' variable and returns it when you use the New keyword in a constructor function. Being that that is the case, it really goes well with your teachings of factory functions and kinda trivialized a very hard to understand concept for me. Thank you so much for helping....You got my sub yesterday but if I could do it again, I would :).

[lewitness]

Thanks, I didn't even realise there was a difference between constructors and factory functions!

[NcVelocity]

I like the way you teach and the video quality and the code snippets are way better than someone talking and going through with and just speaking quickly. Good job and thank you!!

[worldwide_wes]

the funny intro earned my sub...just fell flat on my face in an interview where I was asked to explain one of these...time to brush up

[awaismohsin]

Soon big companies will pick you up, They don't know yet how rare diamond you are, Exellent

[genesipes]

This is definitely great content. You're a natural.