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What makes Lisp macros so special?
Reading Paul Graham's essays on programming languages one would think that Lisp macros are the only way to go. As a busy developer, working on other platforms, I have not had the privilege of using Lisp macros. As someone who wants to understand the buzz, please explain what makes this feature s...
jQuery: Best practice to populate drop down?
...I deleted my previous comments. Because I understood the answer more after reading my own comments :)
– ivange
Aug 21 '16 at 12:26
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show 2 ...
Find a Git branch containing changes to a given file
...)
FILENAME="<filename>"
git log --all --format=%H $FILENAME | while read f; do git branch --contains $f; done | sort -u
Manually inspect:
gitk --all --date-order -- $FILENAME
Find all changes to FILENAME not merged to master:
git for-each-ref --format="%(refname:short)" refs/heads | gre...
How to get URI from an asset File?
...n AssetManager. Files in the assets folder are placed on the device in the read-only bundled APK and compressed (APKs are actually zip files), thus more work to read it back. Try something like new File(new URI(filename))
– Russ
Jun 20 at 21:42
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Python: fastest way to create a list of n lists
...r more formal and can be extended in a variety of situations, after having read a dataset.
Method 1: Conceptual
X2=[]
X1=[1,2,3]
X2.append(X1)
X3=[4,5,6]
X2.append(X3)
X2 thus has [[1,2,3],[4,5,6]] ie a list of lists.
Method 2 : Formal and extensible
Another elegant way to store a list as a li...
Python 2.7 getting user input and manipulating as string without quotations
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Although for anyone reading this using Python 3, input now works this way, and raw_input is gone.
– Thomas K
Feb 10 '11 at 17:35
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Which is more efficient, a for-each loop, or an iterator?
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If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater.
If however, you mean by loop the old "c-style" loop:
for(int i=0...
Using varchar(MAX) vs TEXT on SQL Server
I just read that the VARCHAR(MAX) datatype (which can store close to 2GB of char data) is the recommended replacement for the TEXT datatype in SQL Server 2005 and Next SQL SERVER versions.
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How can I selectively escape percent (%) in Python strings?
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Just noticed that If the string is a json string, being read from a file you don't even need to escape the % sign. Just % will do
– wander95
Dec 19 '17 at 16:24
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What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]
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(like @@error)
Stops all EC's (execution contexts)
that are child threads of a parent EC
executing a parallel query
Waits for any outstanding I/O
operations that is outstanding
Frees any held buffers on the
server by the connection
Unlocks any buffer resources
that are used by t...