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Why do you need to put #!/bin/bash at the beginning of a script file?
...he "Bourne Again Shell"), scripts can be in bash, python, perl, ruby, PHP, etc, etc. For example, you might see #!/bin/perl or #!/bin/perl5.
PS:
The exclamation mark (!) is affectionately called "bang". The shell comment symbol (#) is sometimes called "hash".
PPS:
Remember - under *nix, associat...
How do CDI and EJB compare? interact?
...a EE 6 compliant server has it (Glassfish 3.0.1+ is not mistaken, JBoss 6+ etc.) You can take a look at JBoss Weld, a reference CDI implementation which you can use in for instance Tomcat...
– Maxym
Aug 13 '14 at 13:47
...
Python idiom to return first item or None
...ave a 0, also replaced by []. If you have False in there, also replaced. Etc. You might get away with this in a specific case, but this is a bad habit to develop.
– steveha
Nov 22 '09 at 4:10
...
Text size and different android screen sizes
...fiers together. Available screen height hdp
Examples: h720dp h1024dp etc.
Specifies a minimum screen height in dp units at which the resources
should be used—defined by the value. The system's corresponding
value for the height changes when the screen's orientation switches
...
How can I detect the touch event of an UIImageView?
...as the button image. But if you want finer-grain control over taps, moves, etc. this is the way to go.
You'll also want to look at a few more things:
Override canBecomeFirstResponder and return YES to indicate that the view can become the focus of touch events (the default is NO).
Set the userInt...
Is there a way to use PhantomJS in Python?
...per" interface through which you may properly handle exceptions, blocking, etc.
– kamelkev
May 5 '13 at 1:58
@kamelkev...
*.h or *.hpp for your class definitions
...C-friendly (too much would be lost, like function overloading, namespaces, etc. etc.).
.h : C/C++ compatible or pure C Headers
This header can be included by both a C source, and a C++ source, directly or indirectly.
It can included directly, being protected by the __cplusplus macro:
Which mean...
How to force a web browser NOT to cache images
...events where they fill the fields (date, place, title, description, links, etc.) and save it. On that form I allow the administrator to upload an image related to the event. On the HTML page displaying the form, I am also showing a preview of the picture uploaded (HTML img tag).
...
Ways to eliminate switch in code [closed]
...tors rather than concepts. I mean that "extends", "factory", "implements", etc are used so often across files, classes, branches. They should be simple as operators like "+", "-", "+=", "?:", "==", "->" etc. When a programmer uses them in his mind as simply as operators, only then he can think ac...
What's the best way to store a group of constants that my program uses? [closed]
... various constants that my program uses... string 's, int 's, double 's, etc... What is the best way to store them? I don't think I want an Enum , because the data is not all the same type, and I want to manually set each value. Should I just store them all in an empty class? Or is there a better...