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How can I determine if a String is non-null and not only whitespace in Groovy?
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and what if foo = null ?
– Bertl
Sep 1 at 10:54
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How to validate an email address in PHP
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The easiest and safest way to check whether an email address is well-formed is to use the filter_var() function:
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
// invalid emailaddress
}
Additionally you can check whether the do...
Calculate a percent with SCSS/SASS
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is there a similar function for px and em?
– Nick Ginanto
Nov 13 '12 at 11:22
1
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Build Maven Project Without Running Unit Tests
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If you want to skip running and compiling tests:
mvn -Dmaven.test.skip=true install
If you want to compile but not run tests:
mvn install -DskipTests
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How to revert a folder to a particular commit by creating a patch
...set e095 -- somefolder
However git reset doesn't update the working copy and the --hard option doesn't work with folders. So then use git checkout to make the working copy the same as the index:
git checkout -- somefolder
and then if you also want to remove any files added you also need todo:
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What is the meaning of CTOR?
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It's just shorthand for "constructor" - and it's what the constructor is called in IL, too. For example, open up Reflector and look at a type and you'll see members called .ctor for the various constructors.
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List of MSBuild built-in variables
...MSBuild reserved properties
Common MSBuild properties
Macros for Build Commands and Properties
Other useful lists:
Well-known item metadata
MSBuild special characters
First link shows the MSBuild property for project name:
MSBuildProjectName The file name of the project file without the fi...
Target elements with multiple classes, within one rule
I have some HTML that would have elements with multiple classes, and I need to assign them within one rule, so that the same classes could be different within different containers. Say I have this in my CSS:
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“java.lang.OutOfMemoryError : unable to create new native Thread”
...nder the control of an Executor if at all possible. There are plenty of standard executors with various behavior which your code can easily control.
(There are many reasons why the number of threads is limited, but they vary from operating system to operating system)
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fork() branches more than expected?
...ou get a feel for it, you should trace out on paper what each operation is and account for the number of processes. Don't forget that fork() creates a near-perfect copy of the current process. The most significant difference (for most purposes) is that fork()'s return value differs between parent ...