How to use javascript symbols to overwrite default iteration behavior #shorts

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[noonecares]

The more i watch these, the more i become sure i have no idea about javascript and i have been working with it for almost 5 years😭😭😭

[modernkennnern]

That's really cool. It's an incredible anti-pattern, but really cool

[polar]

Wow! I have been looking for this for months! Thanks!

[mulwelimushiana]

This is one of those cases where we have to call whoever developed the JavaScript programming language to explain what they were thinking when they included this 😂 Like in which case scenario would I wanna use this??

[danilowm]

Reels is so suck, my screen cut sides and I can’t see all

[C.Ezra.M]

The purpose of this generator function could also be to simulate Python's range type, which really only stores 3 numbers: the start point, the end point, and the step (all numbers in between are programmatically determined).

[omniarexsum]

This is useful for map-like objects, for example, or other types of collections. The "properties" of a mapping have absolutely no bearing on the actual content of the mapping itself. It makes perfect sense to want this functionality; the example was simply a toy one to demonstrate how it works and I think it obscured the actual reason this exists in the first place.

[Zooiest]

You can define the property within the object initializer itself too!

{
// ...
[Symbol.iterator]: function * generator() {
// Generator code here
}
}

[nomadshiba]

wish we were able to overwrite other stuff to
for example what happens when i use +-/* operators
or image if you can rewrite = operator have a property with a getter and setter without putting it inside another object

[omomer]

What are the practical uses of this and symbols in general

[Trademm]

Symbol.iterator is what makes ab object iterator

[engine_man]

Would be better to show a real world use case cos from this example i can't tell if this is a useful feature or not

[TheProcessor]

Would recommend Quokka to output your console logs inline and hide the terminal

[Jesus_.]

is it possible to asign values in the same way?

[gaganbaghel]

the output of your code is not visible bro work in it

[Ish-YouTube]

If I would try to access name or age what would happen then?

[simonkraemer]

If someone of you does that I will be very angry after hours of debugging!

[zendude]

Is there a way to dynamically set the yield statements or will this always be hardcoded

[akbarumar]

Nice info dude, but i think this kind of code will rarely be used in real project. Maybe you can make tutoria about something that people can relate, and how to make it easier.

[Joelitop]

That’s awesome, another piece of code that I’ll get scolded for