What do you Google EVERY. SINGLE. TIME. and never just memorize?

Comments

[Valentin Baca]

• Converting Array<->List in Java*. Been coding Java for 6+ years and still don't care to learn/memorize this.

• Objective-C block syntax

• bash test format and flags

• vim macro create and execute

I noticed I could never remember these, so I always make aliases, shell functions, or short ~/bin/ scripts for them instead:

• tar: xkcd.com/1168/

• netstat flags (other than "-tulpn" which I have memorized as "tull-pin" like "Tolkien")

• ssh tunnel syntax

Edit: *in one-line.
Array to list:

String[] array = ...;
List<String> immutableList = Arrays.asList(array);
List<String> mutableList = new ArrayList<String>(Arrays.asList(array));

List to array:

List<String> list = ...;
String[] array = list.toArray(new String[list.size()]);

Clear as mud...

[Oscar]

Helpful protip. I learned yesterday, that list.toArray(new String[0]) is faster than the version with the explicit size given.

[Lynne Tye]

I was about to write the same thing. How to vertically align elements... without using flex 😂

[Sarah Chima]

Regex. While I understand how it works and how it can be used, it's difficult for me to memorize the right regex that should be used at every point. So I just google whenever I want to make use of it. :)

[Ben Halpern]

Oh yeah that's a big one

[Tiago Marques]

I was just like that... but then I've found regex101.com/ and now, I'm almost proficiente writing regex!

[gustavo]

regex101 is the single best resource I've ever found for regex.

[Miff]

It's funny in my case. I know enough regex to get by, but I generally need to google to find out how to actually apply it.

Do I need RegExp.prototype.test or String.prototype.match in JS? What are the order of parameters in preg_match in PHP? What are the little parentheses things called in .NET, captures or groups?

[Andrew]

I had the same problem, until I found Rubular:

rubular.com/

Bonus tip: making a permalink will also save all the test cases used. Makes for an excellent inline comment!

[Kwabena Bio Berko]

Me too!
Hahaaahaa

[Roger Paviani]

Same here...
BTW, I knew someone must've been written about regular expressions when I read the title.. 😂

[Jens Genberg]

I can never remember how it works either. I found this to be helpful, though! regexr.com/

[George Offley]

I always have to Google regex. Or copied old code.

[Reynaldo Jose Abreu]

Same here. I can only remember $,^,*,+ and /s /w. I always end up up googling an example and going from there.

[Ben Halpern]

For me it's "manually start postgresql"

Every once in a while my postgres server isn't running and I know to punch that into my browser and land on this Stack Overflow question, where I proceed to copy this command into my terminal:

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

It happens infrequently enough that I never bother to alias it or remember how to type it out. I just remember what to Google.

[Galdin Raphael]

I have postgres installed via homebrew. So I use brew info postgres to copy the start command :)

[lepinekong]

So did I then I realize how many precious minutes of my life I'm losing so I decided to buy a domain for 75 cents mycodesnippets.space :) I write things down little by little as soon as I need it the first time or I risk to never do it by lazyness !

[Kwaku Eshun]

Oh yes, I even googled and used this today because my service keeps stopping.

[Srikanth]

I was gonna say this. Have bookmarked the stackoverflow post on this. :D

[Kaustav Banerjee]

cant you just sudo service postgresql start ? :P

[shelby spees (she/her)]

On Linux, yes. On OSX, no unfortunately.

[Amin Arria]

How to make a tar file...

[damian]

at least extracting is easy (say it in a german accent) tar -xzf "xtract ze files"

[Chrissy Wainwright]

and -czf == 'compress ze files'

[Amin Mohamed Ajani]

well what works for me is tar -xzvf "xtract ze vucking files"
No kidding that's how remember it

[Amin Arria]

That's a great way! Jajajaaj

But it's important to note that tar is smart enough to detect the format so I prefer the general tar -vxf

[dean]

Thank you so much.

[Florian Reuschel]

Even though as a German with decent English pronunciation this is a little bit insulting, I'll probably never forget this ever again. Thanks! 🙈

[Jonas Gauffin]

Isn't that for zipped tar files? -xzf = extract zipped (tar) file.

[tbodt]

[B. Agustín Amenábar Larraín]

I threw this one at a dev I used to work with. He answered instantly, he could have disarmed 2 bombs with that speed.

Instant respect gained

[Sanjayshr]

I figured out how to remember it. To create tar, use c option and for extracting replace c with x ==> $tar will remain same for both Lol :) . tar -cvf filename.tar file/dir_path && tar -xvf filename.tar.

[brandonhowkins02]

Hey, I also want to make a tar file for my website name:Lenny face. Let me know if the given suggestions works for you!

[Dave Jacoby]

sed and awk and how to use them.

[Tony]

• Creating SSH Keys

[Martin Kiesel]

I just ssh-k ↑ in zsh and just list all previous key generation commands or if I am not sure what I am looking for I use fzf

# fh - repeat history
fh() {
  print -z $( ([ -n "$ZSH_NAME" ] && fc -l 1 || history) | fzf +s --tac | sed 's/ *[0-9]* *//')
}

[Chad Kunde]

I was helping someone with this earlier this year. Ended up creating a helper for it:

gist.github.com/Kunde21/3633e1e9ef...

[Mathieu PATUREL]

Suprised tldr didn't got mentioned.

It's a pretty neat tool to do this kind of things...

[ImTheDeveloper]

Best link I've seen all week. Heroic!!!!!

[@ScottFred]

That's awesome! thanks

[Aidan Harding]

Javascript array methods. Is this one in-place, or returning a new array? I don't know, but MDN does!

[Andy Zhao (he/him)]

And centering things. Completely clueless every time.

[Andrew]

here's a handy multiple choice questionnaire!

howtocenterincss.com/

[Michael Minshew]

holy crap, whoever made this site needs a medal. Great recommendation!!!