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How can Perl's print add a newline by default?
...
Perl 6 has the say function that automatically appends \n.
You can also use say in Perl 5.10 or 5.12 if you add
use feature qw(say);
to the beginning of your program. Or you can use Modern::Perl to get this and other features.
See perldoc feature for more detai...
MSBuild doesn't copy references (DLL files) if using project dependencies in solution
...opied to the project's bin directory, but not
// assembly B. So in order to get the required assembly B copied over, we add some dummy code here (that never
// gets called) that references assembly B; this will flag VS/MSBuild to copy the required assembly B over as well.
var...
What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
...are variations on Bash Shell Expansions. Expansions happen in a particular order, and some have specific use cases.
Braces as Token Delimiters
The ${var} syntax is primarily used for delimiting ambiguous tokens. For example, consider the following:
$ var1=foo; var2=bar; var12=12
$ echo $var12
12
...
When annotating a class with @Component, does this mean it is a Spring Bean and Singleton?
...ou may want to annotate it with @Service instead
But have in mind that in order for these annotations to be detected, you need to place this line in applicationContext.xml:
<context:component-scan base-package="com.yourcompany" />
About singletons - spring beans are all in singleton scope ...
Group vs role (Any real difference?)
...in beta (like a role) or the users in beta are in alpha (like a group). In order to make terminology like "includes" and visual elements like tree views unambiguous, most rbac systems require you to specify whether the collection at issue is a "group" or a "role" at least for the sake of discussion....
How to reset Django admin password?
....models import User
User.objects.filter(is_superuser=True)
will list you all super users on the system. if you recognize yur username from the list:
usr = User.objects.get(username='your username')
usr.set_password('raw password')
usr.save()
and you set a new password (:
...
Ternary Operator Similar To ?:
...s?
c ? p | q
Then you’ll need the following code. Notice the call-by-name (=>)
annotations on the arguments. This evaluation strategy is required to
correctly rewrite Java’s ternary operator. This cannot be done in Java
itself.
case class Bool(b: Boolean) {
def ?[X](t: =>...
Passing arguments forward to another javascript function
...manipulate that before passing it along, for example: var copy = [].slice.call(arguments); <remove what you want> myFunc.apply(this, copy);
– Nick Craver♦
Feb 17 '12 at 11:18
...
Why is try {…} finally {…} good; try {…} catch{} bad?
...ill be a corresponding 'catch' statement. If you are only using a 'try' in order to ensure resources are de-allocated in the 'finally' block, you might consider the 'using' statement instead:
using (StreamReader reader = new StreamReader('myfile.txt'))
{
// do stuff here
} // reader.dispose() i...
How do I change the UUID of a virtual disk?
...y you have your answer - but you need to stop vbox services of any kind in order to edit those files - otherwise you get same ole same ole. Also make sure your UUID for SATA HardDisk <attached devices > at the bottom of config file matches the UUID for the Hard Disk in the HardDrive section a...