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How to check if current thread is not main thread
...eturn null if the thread is not associated with a Looper. So both are safe and have the same result but the first one is a little bit slower while it searches inside a map to find out the looper and its associated thread and do some other stuff .
– Saeed Masoumi
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How to detect the current OS from Gradle
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Actually, I looked at the Gradle project, and this looks a little cleaner as it uses Ant's existing structure:
import org.apache.tools.ant.taskdefs.condition.Os
task checkWin() << {
if (Os.isFamily(Os.FAMILY_WINDOWS)) {
println "*** Windows "
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Deep null checking, is there a better way?
...ing a new operation "?." to the language that has the semantics you want. (And it has been added now; see below.) That is, you'd say
cake?.frosting?.berries?.loader
and the compiler would generate all the short-circuiting checks for you.
It didn't make the bar for C# 4. Perhaps for a hypothetic...
how do I use the grep --include option for multiple file types?
...*.{html,php,htm} "pattern" /some/path/
Don't forget that you can use find and xargs for this sort of thing to:
find /some/path/ -name "*.htm*" -or -name "*.php" | xargs grep "pattern"
HTH
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Why is Spring's ApplicationContext.getBean considered bad?
I asked a general Spring question: Auto-cast Spring Beans and had multiple people respond that calling Spring's ApplicationContext.getBean() should be avoided as much as possible. Why is that?
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Convert character to ASCII code in JavaScript
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@MathiasBynens: and fortunately this is documented: developer.mozilla.org/en/JavaScript/Reference/Global_Objects/…. "if it is not a number, it defaults to 0"
– tokland
Nov 15 '11 at 19:46
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How to make Sequelize use singular table names
...de to freezeTableName is that it also prevents sqlz from lowercasing table and column names. Which means that later, when you're hand-writing SQL to dig through data, you have to cope with mixed-case names (whatever that means for your dialect). On pg, it means having to use double-quotes around eve...
What is the default scope of a method in Java?
... access the method/field/class. Package-private is stricter than protected and public scopes, but more permissive than private scope.
More information:
http://docs.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html
http://mindprod.com/jgloss/scope.html
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Rails has_many with alias name
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FYI: this also works for has_and_belongs_to_many associations, only no need for the "foreign_key" piece
– David Moritz
Jun 6 '18 at 21:04
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How can I define colors as variables in CSS?
...te long. I know that the client could ask for changes to the color scheme, and was wondering: is it possible to assign colors to variables, so that I can just change a variable to have the new color applied to all elements that use it?
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