Create account

DEV Community

What is the most common error you see?

stereobooster on June 30, 2019

What is the most common error you see people doing over and over? Maybe some common wrong belief?

Photo by Sarah Kilian on Unsplash

Marco Antonio Dominguez • Jun 30 '19

I think the 2 most common errors in JS, are mostly:

Trying to access any property into an undefined or null.
Trying to invoke an attribute as a function, this can relate with the first point, anyhow I saw this too much.

In the management side:

Not hear the people, it can be someone is about to leave the project/company.
Not hear the recommendations before taking a poor technical decision.

In general:

Over-optimize everything without setting the proper metrics.
Keep technical debt growing.
Set everything as an urgent requirement.

stereobooster • Jun 30 '19

True: when everything is a priority, there is no prioritisation.

stereobooster • Jun 30 '19

Overuse of modals modalzmodalzmodalz.com/

Michiel Hendriks • Jul 1 '19

Thinking that something is "simple", or even worse: "easy".

And once they have been burned enough by this error they will blow everything out of proportion, which generally leads to a downward spiral of diminished returns.

Craig Nicol (he/him) • Jun 30 '19

Cutting quality helps to meet a deadline.

stereobooster • Jun 30 '19 • Edited

Error: Ruby, JavaScript are untyped languages. Actually, they are dynamically (typed) type checked languages dev.to/stereobooster/pragmatic-typ...

stereobooster • Jun 30 '19 • Edited

Error: const is for declaring immutability. Nope, const declares referential transparency dev.to/stereobooster/similar-yet-d...

Ross Henderson • Jul 1 '19

In my stack (Oracle APEX) I'd say it's instead validating data entry to prevent errors, it's trying to handle an insurmountable amount of potential exceptions with "nice error messages".

Craig Nicol (he/him) • Jun 30 '19

At the language level : Variable length Indexed Lists are the only collection you need. Arrays, Sets, Hashtables, Dictionaries, Linked Lists, and others all are better solutions for some problems.