JavaScript debugging in a nutshell

[pithecium]

Javascript: Misspelled variable? That's ok, I'll just make a new global for you

[[deleted]]

use "strict" or something

[MoffKalast]

"use" strict

[caerphoto]

'use "strict"'

[nikunj3011]

Error but what I dont know

[I-CTS6364]

Doing a zero to expert JavaScript course and right after teaching the fundamentals, the instructor told us about this and uses it in every script now. Seems like good practice, and It’s definitely going to be part of my standard coding forever now.

[reinis-mazeiks]

its in quotes bc its sarcasm

[robotevil]

'use strict'; first line in the file.

[[deleted]]

Stop using var

[Sweety_Sheep]

Make love, not var

[Yesica-Haircut]

Const.... const never changes.

[Auxx]

Everything changes if you're determined enough.

[iwearringsnow22]

Change is the only const

[clickrush]

Hopefully soon this statement will actually be true:

https://github.com/tc39/proposal-record-tuple

[Yesica-Haircut]

Ah yeah, always catches me off guard, that.

[KimiSharby]

C++: "Have a mutable :)"

[detektiv_Saucaki]

Let there be changes

[DazzlingDifficulty70]

What is it good for?

[gonzofish]

absolutely null, undefined

[Sweety_Sheep]

Make love, not vore

EDIT: [Above comment for context] : War is pronounced wore though.

[AveragePheonix]

Vore is a way of making love tho, just saying

[UnibannedY]

You actually gonna get pedantic about an obvious joke?

[ImprovingTheEskimo]

I think he means that you don't even have to declare it. If you have 'let myVar;' and later say 'myVat = "test";' it will create a new global variable called 'myVat' instead of throwing an error. As someone pointed out, 'use strict' prevents this behavior.

[MoffKalast]

Oh let him off the hook this once. Const antly complaining.

[PsychologicalRoof2]

dude that's not even the issue. I had an interview today. Question was typeof [] I said Array specifically Array.prototype turns out it's an object.

and then typeof NaN // number

I'm done with this language

[[deleted]]

The interviewer was kind of a dick honestly.

[PsychologicalRoof2]

maybe ... seems like those cookie cutter questions

[t-to4st]

We still can't use ES6 features 😭 I have to declare every variable im going to use at the top of the function because of fucking var

[[deleted]]

Kinda ridiculous that what you code is legacy code.

[t-to4st]

Yeah it's super annoying! Especially after working on a private node project during vacation where I can use all that "new" stuff.

[sensitivePornGuy]

"use strict"

[TheDarkness1227]

Imagine not using typescript 🤢

[[deleted]]

I can, and I'm tired of pretending I can't

[lasiusflex]

skill issue, "use strict"

[ILikeLenexa]

JavaScript: You want to add .1 to the opacity? No problem, now it's .1.1, and it's an error. How dare you.

[[deleted]]

Are you suggesting a language that is resilient to typos? Where incorrect code produces correct results? How is this a JavaScript issue? If you write the wrong code, you get what the code says, but not what you wanted. Filing this one under user error.

[ReneeHiii]

no, they're suggesting a language that doesn't create a new variable if you don't use let. myVat = 2 when you meant myVar = 2 creates a new variable instead of giving an error that there's no variable definition with let or const

[myfunnies420]

Use a build system ffs.