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Regex, every non-alphanumeric character except white space or colon
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[^a-zA-Z\d\s:]
\d - numeric class
\s - whitespace
a-zA-Z - matches all the letters
^ - negates them all - so you get - non numeric chars, non spaces and non colons
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Never seen before C++ for loop
...#. In my opinion it is clearer, less of a trap for new programmers, and equally efficient.
As others have pointed out -- but to make my answer complete -- to make it work in C# you would need to change while(u--) to while(u-- != 0).
... or while(u-- >0) just in case u starts off negative. (OK, ...
How can I monitor the thread count of a process on linux?
..., simply use watch:
$ watch ps -o thcount <pid>
To get the sum of all threads running in the system:
$ ps -eo nlwp | tail -n +2 | awk '{ num_threads += $1 } END { print num_threads }'
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Full examples of using pySerial package [closed]
...is code. I'm not certain on this but I believe the serial port is automatically opened when it is explicitly defined as you have done with ser. After commenting out the ser.open() line it worked.
– user3817250
Sep 23 '14 at 14:31
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How to get the Display Name Attribute of an Enum member via MVC razor code?
I've got a property in my model called "Promotion" that its type is a flag enum called "UserPromotion". Members of my enum have display attributes set as follows:
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Get class name using jQuery
...d
this.id // for IDs
Both are standard DOM methods and well supported in all browsers.
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How to read a .xlsx file using the pandas Library in iPython?
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I usually create a dictionary containing a DataFrame for every sheet:
xl_file = pd.ExcelFile(file_name)
dfs = {sheet_name: xl_file.parse(sheet_name)
for sheet_name in xl_file.sheet_names}
Update: In pandas version...
How to fix the “java.security.cert.CertificateException: No subject alternative names present” error
...ager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[] {new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(X509...
When to use , tag files, composite components and/or custom components?
...nces be the only solution when a composite component doesn't suffice. Generally, having an <ui:include> with one or more <ui:param> which passes a managed bean property (and thus not a hardcoded value) is a signal that the include file can better be a tag file.
Examples:
How to create a...
How to see the changes in a Git commit?
...that can be recursively dereferenced to a commit object. The following are all commit-ishes: a commit object, a tag object that points to a commit object, a tag object that points to a tag object that points to a commit object, etc.
See gitrevision "SPECIFYING REVISIONS" to reference a commit-ish....