Comment by Rajkumar on "What are some popular misconceptions you have heard about JavaScript?"

CommentWhat are some popular misconceptions you have heard about JavaScript?

Rajkumar

Fullstack Developer.

Oct 6, 2017

JS can do everything. Literally, I have heard people say that. I have seen people write some simple functions which can be easily done in Java, being written in JS which is not only big, but clumsy.
JS is front-end version of Java. I mean yeah, the name Javascript is misleading, but even few experienced developers say the same.
JS is not secure and vulnerable!

These 3 are most common one's I can recollect!

Jason Knight

The less code you use, the less there is to break

Oct 8, 2017

Your second one is why I came up with the phrase:

Java is to JavaScript as Ham is to Hamburger.

That said, your third one is TRUE for client side processing, as any script in the browser can screw with damned near anything you do. Hence why sending ANYTHING security related client side for processing is stuffing the herp into that derp, in a full on ermagerhd way.

See the number of times I've worked for clients who's shopping carts got hacked because the nitwits were calculating the costs and sums client side, instead of not trusting what the JavaScript was doing since what's that rule? ALL client side processing is suspect and should be double-checked server-side!

Well that and the classic:

If you can't make a fully functioning and working website without JavaScript FIRST, you likely have zero business adding JavaScript to it!

Rajkumar

Fullstack Developer.

Oct 8, 2017

Doing business related stuff in JS is crazy and I always send my data to backend for such things. And before I send it to Payment Gateway, I always calculate again in backend just to make sure as additional layer of security. But just because some dimwits doing such mission critical stuff in JS doesn't mean it is vulnerable. It means HE is stupid. That's what I tried to convey.

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