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Sherry Day
Sherry Day

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What was your greatest "aha" moment as a JavaScript developer?

Discussion (23)

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Eljay-Adobe

JavaScript was designed to be small snippets of glue code to handle DOM events. It was not designed to be for large applications.

The contenders for The Language of the Internet were Macromedia/Adobe Flash, Sun/Oracle Java, and Microsoft Silverlight. No one suspected that JavaScript would overtake all of those well-funded behemoths and rise the victor. Yet JavaScript persisted, and ultimately prevailed.

So whenever I get angry that JavaScript seems to do something stupid, I am reminded of its humble beginnings, and that it served the domain it was designed for very well.

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Regis Gaughan, III • Edited on

About 16 years ago when I firmly understood scope, closures, and this.

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ben profile image
Ben Halpern

So much this

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Harshad pk

function print(str){
console.log(str)
}

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ChrisCosentino

const { log } = console;

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Jordy Lee

Lmao wow, I can't believe in all these years it never occurred to me once to destructure the console

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darkwiiplayer profile image
DarkWiiPlayer

Doing so might void your warranty though 😝

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Liviu Lupei

When I understood that a browser is so much more than a JavaScript interpreter.
It's crazy how different things can behave in Safari.
And things look and work differently even in Chrome on Windows vs. Chrome on MacOS.

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Ben Halpern

Specifically on the JavaScript front, I really think that the initial introduction of React Native really helped me understand what React meant in general to the JS ecosystem.

Since then lots of stuff riffed off of React, but at the time it was really a new thing. Specifically React Native helped close the mental gap for me. I think it helped step me further away to see the pattern for what it was instead of trying to micro-compare it to Angular, etc.

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OffCorner Developer

svelte in combination with tailwind, storybook and google firebase really changed the way i am working on my current project. While it is quite tricky to integrate storybook and mock firebase I am looking for solutions and might come up with a framework of sorts…

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Sherry Day Author

What about Google Firebase was the most "aha"?

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Alex Lohr

There was a point about 20 years ago, when I finally understood the underlying concepts (RegExp was suddenly fun, I soon started to overuse them, but that's a different story).

However, since then, I had a fair share of great "aha" moments, e.g. when finally understanding react fibers after reading the source code or after listening to Ryan Carniato talk about reactivity in Solid.js (his understanding of the topic is deeper than anyone's I've ever met).

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DarkWiiPlayer

Figuring out the whole callback/promise/async tower of abstractions sure was a bit of an AHA! moment, but not of the good kind.

To this day I am convinced callbacks and the many attempts to make them more usable are an inferior mechanism for handling asynchronicity in code.

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Peter Vivo

When I change OOP to functional programming, forget the this, and implement pipeline operator in my stack.

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Fabian Gargaglione

Probably when I started reading and trying my best to understand how modern frameworks are implemented. I'm still pursuing this, and probably it will never end, but it was the last aha moment I experienced in the javascript world.

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Anton Melnyk

That functions and closures are core elements of the language. You can assign functions to variables, return them from other functions, pass to other functions as parameters and thanks to closures do easy currying.

This opens amazing possibilities for functional programming. Having some experience with ramda.js and crocks.js, I am fairly positive THIS is the power of the language. Sadly, not all of the devs get it and try to write ‘this’, classes and do monstrosity like Angular. Even React is not yet utilising full power it could utilise.

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Colin Kiama

Finding out how this works. Very eye-opening.

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Azlan-Syed

i am a beginner lol

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Alexandra

Lol, same.😆

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Azlan-Syed

but i am a py professor

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amolo profile image
Amolo
  1. Spread syntax.
  2. React Hooks.
  3. await(await fetch('url'))
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AmerJundi

It was aha

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Song Yeongmin

understand between reference type and value type. how does it change my object or array?