JavaScript Fundamentals: Functions are Objects

A very important, yet loosely understood feature of JavaScript is the feature that functions are objects. In this tutorial I want to cement this idea with some examples.

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Tutorials referred to in this video:

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[halimaa]

Thank you sir, this has helped me so much! I was confused about why functions are objects. Not many instructors explain the reasons the way you did.

[carlosfernandez]

Not tired of saying, these are the best explained tutorials in the net

[andeslam]

this is so useful than those 4-hours long javascript tutorials
thanks sir

[sorover]

These kind of enlightening lessons/videos are great to help you once you really want to start to master JS

[MaxenceCHEN]

The clearest video about functions that I have ever watched. I have been confused about this concept for weeks and I couldn't figure about how functions are stored. Thanks very much:)

[jialiu]

Such a concise, clear breakdown of a topic I totally missed watching other YouTube videos. Thanks!

[shuuheihisagi]

Glad I just found this channel. I know some javascript but I'm into learning its fundamentals more so I feel more confident while using it

[siyadeveloper]

The most important concept you share with us. Thank you so much!

[adityabansal]

You explained it very conceptualy exactly how i needed, love you.

[astigmatik]

omg.. thanks for this really helpful. i knew some of these things partly but this video connected more dots in my head!

[cjm]

Hello, this is a great tutorial, and thank you so much its appreciated! I'm still a novice and I have a question; I am following along writing the code you are writing but I cannot see same results, is it because I'm using a different IDE? I'm using visual studio code.

[karlstenator]

Thanks so much for these great lessons. I have a question, in that I'm attempting a couple of different techniques of hosting functions in objects - is what I'm attempting below possible?

const animals = {
Owner: 'Jane Doe',
cat: {
real_name: 'Catty Kit',
nick_name: 'Miss Kitty',
age: 12
},
dog: {
nick_name: 'doggy dag',
age: 6
},
fullname : function(_value) {
return this._value?.real_name + " " + this._value?.nick_name;
}
};

console.info("Here's an animal nick and real name " + animals.fullname("cat"));

[ikhsanmaulana]

why this in function mean global not the the fuction it self?

[akshay__sood]

Functions are objects and are Reference type too so how can we clone (shallow and deep) them just like arrays and object ?

[acethomas]

Can anyone plz help me with some JavaScript functions for this game that I play online