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php var_dump() vs print_r()
..._dump function displays structured information about variables/expressions including its type and value. Arrays are explored recursively with values indented to show structure. It also shows which array values and object properties are references.
The print_r() displays information about a variable...
What is a regular expression for a MAC Address?
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This regex matches pretty much every mac format including Cisco format such as 0102-0304-abcd
^([[:xdigit:]]{2}[:.-]?){5}[[:xdigit:]]{2}$
Example strings which it matches:
01:02:03:04:ab:cd
01-02-03-04-ab-cd
01.02.03.04.ab.cd
0102-0304-abcd
01020304abcd
Mixed format...
Difference between JSP EL, JSF EL and Unified EL [closed]
...w string concatenation operator +=, new operations for collection objects, including streams and Lambda expressions -> (even on Java 6/7!) and importing constants into EL scope.
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Executing multi-line statements in the one-line command-line?
...reas 2.x also accepts print 'foo'.
- For a cross-platform perspective that includes Windows, see kxr's helpful answer.
In bash, ksh, or zsh:
Use an ANSI C-quoted string ($'...'), which allows using \n to represent newlines that are expanded to actual newlines before the string is passed to python:...
Is there a properly tested alternative to Select2 or Chosen? [closed]
...lternative to Select2 that basically provides the same functionality, but includes proper tests.
3 Answers
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List of MSBuild built-in variables
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I would also include docs.microsoft.com/en-us/dotnet/core/tools/…. Those properties are quite useful when migrating to the new csproj format.
– cao
May 15 '19 at 8:22
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Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
...checks if a string is null or an arbitrary number of spaces in the string (including a blank string)
2- string .IsNullOrWhiteSpace(text)
The method IsNullOrWhiteSpace covers IsNullOrEmpty, but it also returns true if the string contains white space.
In your concrete example you should use 2) as ...
Getting a 404 from WMSvc via MSDeploy.exe
...ssue, just went into Control Panel and changed the "Web Deploy" install to include the Handler. Restarted The WMSVC Service and all was good!
– Matt Woodward
Feb 23 '14 at 2:27
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How to retrieve all keys (or values) from a std::map and put them into a vector?
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There is a boost range adaptor for this purpose:
#include <boost/range/adaptor/map.hpp>
#include <boost/range/algorithm/copy.hpp>
vector<int> keys;
boost::copy(m | boost::adaptors::map_keys, std::back_inserter(keys));
There is a similar map_values range ad...
How can I index a MATLAB array returned by a function without first assigning it to a local variable
...I haven't checked (Use the profiler!!!). That being said, you also have to include these function definitions somewhere. I personally have made them independent functions in my path, because they are super useful.
These functions and others are now available in the Functional Programming Constructs...