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What is the best way to do a substring in a batch file?
...s is zero based, so the first character is at position 0, the second at 1, etc.
To get substrings of argument variables such as %0, %1, etc. you have to assign them to a normal environment variable using set first:
:: Does not work:
@echo %1:~10,5
:: Assign argument to local variable first:
set v...
How can I check if a string is null or empty in PowerShell?
Is there a built-in IsNullOrEmpty -like function in order to check if a string is null or empty, in PowerShell?
11 Answers...
Which Boost features overlap with C++11?
... → std::ratio
Static Assert → static_assert
Thread → <thread>, etc (but check this question).
Typeof → auto, decltype
Value initialized → List-initialization (§8.5.4/3)
Math/Special Functions → <cmath>, see the list below
gamma function (tgamma), log gamma function (lgamm...
What is `mt=8` in iTunes links for the App Store?
...nk itself (e.g. RSS Feed Generator, Search API,
Enterprise Partner Feed, etc.). This helps identify where the link
came from for your benefit, but doesn’t actually affect the end user
experience. This can be removed if necessary to tidy up the link.
Affiliate Specific Parameters
AT...
Can “using” with more than one resource cause a resource leak?
...l zero and we leak the handle!
You need to write extremely clever code in order to prevent this leak from happening. Now, in the case of your Font resource, who the heck cares? We leak a font handle, big deal. But if you absolutely positively require that every unmanaged resource be cleaned up no ...
How can I check if a directory exists in a Bash shell script?
...
For modern versions of bash, ksh, etc. [...] is a builtin
– fpmurphy
Mar 24 '11 at 14:22
80
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Sending emails in Node.js? [closed]
...l 404'ing.
nodemailer claims to support easy plugins into gmail, hotmail, etc. and also has really beautiful documentation.
share
answered May 15 '12 at 1...
Java: when to use static methods
... static method that is using some external resource (filesystem, database, etc) this type of static can make it horrendous to test the consuming methods. I personally try to keep statics in the realm of "utility."
– Seth M.
Apr 7 '14 at 13:50
...
Best practices for copying files with Maven
...
In order to copy a file use:
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
<executions>
<exe...
How would I skip optional arguments in a function call?
...bj = new MyObjectClass();
$var = $obj->a(MyObjectClass::DEFAULT_A_B); //etc.
Note that this default constant is defined exactly once throughout the code (there is no value even in method declaration), so in case of some unexpected changes, you will always supply the function/method with correct...