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Java regex capturing groups indexes
...or 1*0, then $) versus ^0*1|1*0$ (^0*1 or 1*0$).
A capturing group, apart from grouping, will also record the text matched by the pattern inside the capturing group (pattern). Using your example, (.*):, .* matches ABC and : matches :, and since .* is inside capturing group (.*), the text ABC is rec...
Yes or No confirm box using jQuery
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I had trouble getting the answer back from the dialog box but eventually came up with a solution by combining the answer from this other question display-yes-and-no-buttons-instead-of-ok-and-cancel-in-confirm-box with part of the code from the modal-confirmation ...
How can I add the sqlite3 module to Python?
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if your python3 is built from source manually , and meet this error, you should install sqlite-devel package first, then rebuild python3.
– ngn999
Mar 28 '16 at 1:28
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What is the difference between Int and Integer?
...r)
<interactive>:3:2:
No instance for (Bounded Integer) arising from a use of `minBound'
Possible fix: add an instance declaration for (Bounded Integer)
In the expression: minBound
In the expression: (minBound, maxBound) :: (Integer, Integer)
In an equation for `it':
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What is the meaning of erb?
...".js.erb" or ".rxml" to ".xml.erb"
This format separates out content type from template engine which is "erb" in this case.
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Should methods that throw RuntimeException indicate it in method signature?
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From the Oracle Java tutorial:
"If it's so good to document a method's API, including the exceptions
it can throw, why not specify runtime exceptions too?" Runtime
exceptions represent problems that are the result of ...
ExpressJS - throw er Unhandled error event
...cess, follow these steps:
ps aux | grep node
Find the process ID (second from the left):
kill -9 PRCOCESS_ID
OR
Use a single command to close all the running node processes.
ps aux | awk '/node/{print $2}' | xargs kill -9
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PHP expresses two different strings to be the same [duplicate]
...t which also has both == and ===?
The answer is the behavior is different from PHP. In javascript, if you compare two value with same type, == is just same as ===, so type cast won't happen for compare with two same type values.
In javascript:
608E-4234 == 272E-3063 // true
608E-4234 == "272E-306...
How to test that no exception is thrown?
...sts will all turn up green.
I have noticed this question garners interest from time to time so I'll expand a little.
Background to unit testing
When you're unit testing it's important to define to yourself what you consider a unit of work. Basically: an extraction of your codebase that may or may...
Iterate through every file in one directory
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Dir has also shorter syntax to get an array of all files from directory:
Dir['dir/to/files/*'].each do |fname|
# do something with fname
end
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