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LINQ Group By into a Dictionary Object
...Otherwise the Todict-method fails generating key (for String-Properties at least...) :)
– dba
Oct 30 '15 at 12:18
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Shell one liner to prepend to a file
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This still uses a temp file, but at least it is on one line:
echo "text" | cat - yourfile > /tmp/out && mv /tmp/out yourfile
Credit: BASH: Prepend A Text / Lines To a File
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How to define two angular apps / modules in one page?
...odule. Is there no way to use markup on the page to accomplish this? Or at least, some hint in the markup?
– chrismarx
Aug 27 '13 at 13:58
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Ruby, !! operator (a/k/a the double-bang) [duplicate]
...understand why languages like Ruby are embracing it. Everything to use the least number of characters possible?
– Kevin M
Jan 5 '16 at 21:32
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How can I make a multipart/form-data POST request using Java?
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you'll need httpcore as well, at least in 4.2, for the HttpEntity class
– alalonde
Jul 3 '12 at 3:58
add a comment
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How to check if NSString begins with a certain character
.... The performance of CFStringHasPrefix() seems to be 2-3 times better (at least when using my data set). So if you are using it in a performance sensitive area, you might want to try CFStringHasPrefix() instead.
– John Bowers
Feb 6 '14 at 21:00
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How to get distinct values from an array of objects in JavaScript?
...s. There is no faster way than O(n) because you must inspect each value at least once.
The previous version of this used an object, and for in. These were minor in nature, and have since been minorly updated above. However, the reason for a seeming advance in performance between the two versions in...
live output from subprocess command
.... It will inherit these as usual instead. Note that on POSIX systems, at least, this does not mean it will use Python's sys.stdout, just Python's actual stdout; see demo at end.
An int value. This is a "raw" file descriptor (in POSIX at least). (Side note: PIPE and STDOUT are actually ints inter...
How to prove that a problem is NP complete?
...does it have a vertex cover set of size k such that every edge in G has at least one vertex in the cover set?) is in NP:
our input X is some graph G and some number k (this is from the problem definition)
Take our information C to be "any possible subset of vertices in graph G of size k"
Then we ...
What should every developer know about databases? [closed]
...amming is relatively small.
The third thing developers need to learn, at least in an overview, is data modeling, including conceptual data modeling, logical data modeling, and physical data modeling.
Conceptual data modeling is really requirements analysis from a data centric point of view.
Logi...