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Python progression path - From apprentice to guru
..., list comprehensions vs. generator expressions, iterators vs. generators, etc.; however all those other suggestions are another post for another time. Hope this helps in the meantime! :-)
ps. I agree with the other responses for getting more intimate with introspection as well as studying other pr...
Linux, Why can't I write even though I have group permissions?
...d/gids from its parent. You need a privileged program (such as login, su, etc.) to actually set uid/gids.
– ephemient
Feb 22 '11 at 2:48
4
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Chrome Extension Message passing: response not sent
...nion can be handled by having a convention that the handler (handleMethod1 etc) return false to indicate the "no response" case (though Id rather just always make a response, even an empty one). This way the maintainability problem is only localized to those special "no return" cases.
...
.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
...eally the best implementation of an array (as opposed to multidimensional, etc.) - because SZs have specific intermediary language instructions for manipulating them.
Arrays are always passed by reference (as a memory address) - an important piece of the Array puzzle to know. While they do bounds ch...
django urls without a trailing slash do not redirect
...it signified a beginning of something new, not the end of something (e.g. /etc), but this allows for the standard (/view) and the non-standard (/view/).
– David Betz
Nov 3 '15 at 16:58
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Flexbox and Internet Explorer 11 (display:flex in ?)
...se it
screws up elements inserted via jQuery plugins (autocomplete, popup,
etc.).
Don't use height:100% or height:100vh on your container because the footer will stick at the bottom of window and won't adapt to long content.
Use flex-grow:1 rather than flex:1 cause IE10 and IE11 default values for f...
Push to GitHub without a password using ssh-key
...github urls!): git remote set-url origin $(git remote show origin | grep "Fetch URL" | sed 's/ *Fetch URL: //' | sed 's/https:\/\/github.com\//git@github.com:/')
– Christopher Shroba
Apr 18 '18 at 16:36
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How do you create a random string that's suitable for a session ID in PostgreSQL?
...tgreSQL provides a type that is exactly 128 bits. Unlike text and varchar, etc which store as a varlena which has overhead for the length of the string.
PostgreSQL nifty UUID comes with some default operators, castings, and features.
...
git diff file against its last change
... (in your example this will be 123abc) or HEAD^^ (456def in your example), etc ...
So the answer to your question is:
git diff HEAD^^ myfile
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Why does CSS work with fake elements?
...pecific version of HTML. CSS can be used on HTML, XHTML, XML, SGML, XAML, etc. Of course, you need something that will render each of these document types that will also apply styling. By definition, CSS does not know / understand / care about specific markup language tags. So, the tags may be "...