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JavaScript OR (||) variable assignment explanation
...se when used in boolean context, and they are 0, null, undefined, an empty string, NaN and of course false.
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Java naming convention for static final variables [duplicate]
...cted or package visibility, its usage is the same:
public void send(final String message) {
logger.info("Sending the following message: '" + message + "'.");
//Send the message
}
Here, we don't care that logger is a static final member variable. It could simply be a final instance variabl...
Remove redundant paths from $PATH variable
... your command sets the PATH to - $PATH(the current value of PATH) + the string /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games. If you want to have just the String, remove $PATH + the semicolon (:) from your command. It doesn't matter if you use echo or edit the file...
Can we instantiate an abstract class?
...
}
}
Poly.java:
class Poly extends My {
public static void main(String a[]) {
My m = new My() {};
m.myMethod();
}
}
Now, compile both your source files:
javac My.java Poly.java
Now in the directory where you compiled the source code, you will see the following cla...
XSLT equivalent for JSON [closed]
...
This code uses string.eval() ... :-(
– dreftymac
Oct 17 '12 at 1:10
...
Set Page title using UI-Router
... $window.document.title = title;
}
});
Then just add a title string to your state:
$stateProvider.state({
name: "foo",
url: "/foo",
template: "<foo-widget layout='row'/>",
title: "Foo Page""
});
That will make the words "Foo Page" show up in the title. (If a st...
Mongoose and multiple database in single node.js project
...r ModelA = conn.model('Model', new mongoose.Schema({
title : { type : String, default : 'model in testA database' }
}));
// stored in 'testB' database
var ModelB = conn2.model('Model', new mongoose.Schema({
title : { type : String, default : 'model in testB database' }
}));
I'm pretty s...
How can I exclude all “permission denied” messages from “find”?
...e redirecting ALL errors to dev/null 2) You're filtering an explicit error string!! Depending on these is famously brittle and what if your file was in a directory named 'permission denied'? Oops!
– Gunchars
Nov 10 '14 at 6:03
...
What do querySelectorAll and getElementsBy* methods return?
...mentsByClassName
The getElementsByClassName(classNames) method takes a string that
contains an unordered set of unique space-separated tokens
representing classes. When called, the method must return a live
NodeList object containing all the elements in the document that
have all the cla...
How to preserve line breaks when storing a command output to a variable in bash?
... (one of which is a newline). Then, before invoking echo shell splits that string into multiple arguments using the Internal Field Separator (IFS), and passes that resulting list of arguments to echo. By default, the IFS is set to whitespace (spaces, tabs, and newlines), so the shell chops your $TEM...