What's the one thing you always need to look-up?

How do you feel about your memory? To be honest, I don't have the best memory, I always write down the important things or when I can't remember something I'll definitely search for it.

What are the things developers always forget and need to search for?


The most common answer by far was:

Regular expression


The second most common was:

CSS (Centering divs, animation properties, media queries)


And by the way here is one of the ways to center a div:


display: flex; align-items: center; justify-content: center; \*on parent element *\

By Nikola Betica


I got a lot of answers regarding CSS/HTML/JS, Python, PHP, Java, Git


And the list goes on

  • ► How to make git stop tracking a folder/file
    git rm --cached <file>
    git rm -r --cached <folder>

    By R

  • ► Git reset soft/hard/mixed/keep
  • ► Git list or branch sort by creation time
  • ► Git flow
  • ► Bootstrap classes
  • ► Flexbox align-items, justify-items, align-content, justify-content
  • ► All kind of html forms
  • ► The syntax of if statements and for loops in Python
  • ► Javascript String function
  • ► Dates/Time in JavaScript, PHP (and other languages).
  • ► Splice or slice method in JavaScript
  • ► Let if in rust
  • ► How to initialize arrays in java
  • ► How to loop over a list
  • ► How to remove elements from a list inside the loop
  • ► The ternary operator in JavaScriptCOPY
    Question mark first, then the colon, because otherwise it doesn’t look like Elvis:

    By BeepThink

  • ► The Event for Dom Ready in Vanilla JSCOPY

    By Daniel

  • ► Color codes
  • ► Switch case


What about you? What is something you always tend to forget?

If you want to take part in these questions make sure to follow me on Twitter or Instagram.