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Compile time string hashing
...§5.19/2/2). I did make a mistake in the termination condition, which I've now fixed (I accidentally used || where it should have been &&).
– Jerry Coffin
Jan 21 '10 at 22:17
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Extract a substring according to a pattern
...001" "E002" "E003"
4a) substring/regex
If the colon were not always in a known position we could modify (4) by searching for it:
substring(string, regexpr(":", string) + 1)
5) strapplyc
strapplyc returns the parenthesized portion:
library(gsubfn)
strapplyc(string, ":(.*)", simplify = TRUE)
## [1] ...
Quick unix command to display specific lines in the middle of a file?
...
I found two other solutions if you know the line number but nothing else (no grep possible):
Assuming you need lines 20 to 40,
sed -n '20,40p;41q' file_name
or
awk 'FNR>=20 && FNR<=40' file_name
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Protecting executable from reverse engineering?
...ey even uses a customized USB communication protocol (outside my realm of knowledge, I'm not a device driver guy) to make it difficult to build a virtual key, or tamper with the communication between the runtime wrapper and key. Their SDK is not very developer friendly, and is quite painful to integ...
Search for string and get count in vi editor
...I editor as below
: you are entering from Command to Command-line mode. Now, whatever you write after : is on CLI(Command Line Interface)
%s specifies all lines. Specifying the range as % means do substitution in the entire file. Syntax for all occurrences substitution is :%s/old-text/new-text/g...
DateTime “null” value
...
Following way works as well
myClass.PublishDate = toPublish ? DateTime.Now : (DateTime?)null;
Please note that property PublishDate should be DateTime?
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How to force Chrome's script debugger to reload javascript?
...sabling the Chrome cache.
When you reload the page, the JavaScript should now get refreshed.
Chrome circa 2011
Chrome circa 2018
You can also access it on the network tab:
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Concatenating null strings in Java [duplicate]
...ng Conversion", requires this operation to succeed without failure:
...Now only reference values need to be considered. If the reference is null, it is converted to the string "null" (four ASCII characters n, u, l, l). Otherwise, the conversion is performed as if by an invocation of the toString...
How to get english language word database? [closed]
...y downloaded it, but it was there ready when I started coding. So I don't know what files will be there in which download. I just know that you can download in different formats. If you can tell me in which format you want, I may be able to help.
– user266803
F...
Why is division in Ruby returning an integer instead of decimal value?
... I've built a prime number generator in Ruby in order to learn the syntax, now I'm optimizing it to learn what works best. Here's the benchmark I put together: require 'base64';require 'zlib';puts Zlib.inflate(Base64.decode64("eJxlkMEOwiAQRO98hekFuGzxQEwPXvwR01ZqiYHqBk2Tln8XDlWgnDbM25nJonq9NaoD7ZTtR...