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How to check if a string is a valid hex color representation?
...-> match beginning
# -> a hash
[0-9A-F] -> any integer from 0 to 9 and any letter from A to F
{6} -> the previous group appears exactly 6 times
$ -> match end
i -> ignore case
If you need support for 3-character HEX codes, use the following:
/...
Can I make fast forwarding be off by default in git?
...ngs override global) run this:
git config --global --add merge.ff false
From the documentation:
merge.ff
By default, git does not create an extra merge commit when merging a commit that is a descendant of the current commit. Instead, the tip of the current branch is fast-forwarded. When set...
Maven: best way of linking custom external JAR to my project?
...ur local repository with the library jars then you should change the scope from system to compile.
If you are starting with maven I suggest to use maven directly not IDE plugins as it adds an extra layer of complexity.
As for the error, do you put the required jars on your classpath? If you are us...
Generate an integer that is not among four billion given ones
...om candidates and iterates through the known integers, eliminating matches from the candidates, it is all but certain to find at least one integer that is not in the file.
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Generating random number between 1 and 10 in Bash Shell Script [duplicate]
...
The % 10 reduces the result to a set of ranges from 0-9. However, the very top set only has a range of 0-7. Thus, there are two fewer draws for 8 & 9 than 0-7. The + 1 translates this to a bias against 9 & 10. This would be a major flaw in security contexts - ...
Static linking vs dynamic linking
...amic linking, because their memory is small enough to make the RAM savings from dynamic linking very attractive. Full blown consumer PCs have, as Mark notes, enormous resources, and you can probably let the convenience issues drive your thinking on this matter.
To address the performance and effi...
Dynamic variable names in Bash
...able indirection is introduced. Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value of parameter itself.
– Yorik.sar
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CSV file written with Python has blank lines between each row
...em results in no effect. ie. it results in cross system compatible code.
From Python Docs:
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction between text and binary
files; the...
Default parameter for CancellationToken
... default(CancellationToken) instead. For example, see these search results from the source code of the Entity Framework.
– drowa
Feb 12 '15 at 23:15
21
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How to read an external properties file in Maven
...re ways to use resource filtering to read a properties file and set values from that, but I want a way in my pom.xml like:
...