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Why is Node.js single threaded? [closed]
...Converting product data into a UI is not CPU intensive, nor is calculating orders or the like. Most of the web is pretty transactional. CPU intensive stuff is things like converting videos, converting image formats, etc. Much of that is due to file i/o which, actually, node does pretty well. And...
How can I recover a lost commit in Git?
...`
# is not pointing to the latest so you will need to checkout branch
# in order to be able to update the code.
git checkout <commit-id>
# Create a new branch forked to the given commit
git checkout -b <branch name>
git reflog
You can always use the reflog as well.
git reflog will d...
Can I change the height of an image in CSS :before/:after pseudo-elements?
... Just a note: in my case, I had to put position: absolute in order to get transform: scale(0.5) to actually work. I also had to put position: relative in the "parent" element (the owner of the :after pseudo) for sanity. Also, I had to add translate(-16px, -16px) to my transform to posi...
What's the right way to pass form element state to sibling/parent elements?
...ues" or you're passing the state of some data in the child component up in order to update the state. You changed the state in C1, and you want C2 to be aware of it, so, by updating the state in the Root component and re-rendering, C2's props are now in sync since the state was updated in the Root c...
Method chaining - why is it a good practice, or not?
...chaining is the practice of object methods returning the object itself in order for the result to be called for another method. Like this:
...
Change date of git tag (or GitHub Release based on it)
...fectly usable, it has the effect of putting your tags out of chronological order which can screw with build systems that look for the "latest" tag. But have no fear. Linus thought of everything:
# This moves you to the point in history where the commit exists
git checkout SHA1_OF_PAST_COMMIT
#...
Reverse a string in Python
...ario:
Developer wants to transform a string
Transformation is to reverse order of all the characters
Solution
example01 produces the desired result, using extended slice notation.
Pitfalls
Developer might expect something like string.reverse()
The native idiomatic (aka "pythonic")...
What are free monads?
...
@PauloScardine You do not need the above answer in order to productively program in Haskell, even with free monads. In fact, I wouldn't recommend attacking the free monad in this way to someone who didn't have a background in category theory. There are plenty of ways to talk ...
How can I define colors as variables in CSS?
...I suggest below.
You could put a comment in the css before each colour in order to serve as a sort of variable, which you can change the value of using find/replace, so...
At the top of the css file
/********************* Colour reference chart****************
*************************** comment ...
Setting an object to null vs Dispose()
...n the case where the user of the type has forgotten to dispose of it in an orderly manner. So if you open a FileStream but forget to call Dispose or Close, the finalizer will eventually release the underlying file handle for you. In a well-written program, finalizers should almost never fire in my o...