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how to File.listFiles in alphabetical order?
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Ok, now you justify why it's simpler if you just want to print the results so I will remove my downvote.
– zelanix
Feb 18 '14 at 16:19
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Why does `a == b or c or d` always evaluate to True?
...integer as True.
In [11]: if 3:
...: print ("yey")
...:
yey
Now, Python builds on that logic and let you use logic literals such as or on integers, and so
In [9]: False or 3
Out[9]: 3
Finally
In [4]: a==b or c or d
Out[4]: 3
The proper way to write it would be:
In [13]: if a i...
Design Patterns: Factory vs Factory method vs Abstract Factory
...ch concrete implementation it is getting.
Factory Method: Client doesn't know what concrete classes it will be required to create at runtime, but just wants to get a class that will do the job.
AbstactFactory: When your system has to create multiple families of products or you want to provide a l...
ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
...used below code
a.divide(b, 2, RoundingMode.HALF_EVEN)
2 is precision. Now problem was resolved.
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PHP Error handling: die() Vs trigger_error() Vs throw Exception
In regards to Error handling in PHP -- As far I know there are 3 styles:
2 Answers
2
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How to get jQuery to wait until an effect is finished?
... remove part. P.S. If any one is interested the book I read it in and have now found again is Learning JQuery - Better Interaction and Design. Thanks again
– uriDium
Jun 30 '09 at 20:23
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Why can't variable names start with numbers?
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It's a convention now, but it started out as a technical requirement.
In the old days, parsers of languages such as FORTRAN or BASIC did not require the uses of spaces. So, basically, the following are identical:
10 V1=100
20 PRINT V1
and
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Try/Catch block in PHP not catching Exception
...on $e) instead of catch(Exception $e) . If you are using a code you don't know about very well, or - especially - if you are using a framework, it might override the default PHP Exception with one of its own, and therefore you might go to the wrong path and get the undesired result. If you just put ...
Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
... the text are new.
afterTextChanged(Editable s).
The same as above, except now the text is editable.
Use: when you need to see and possibly edit the new text.
If I'm just listening for changes in EditText, I won't need to use the first two methods at all. I will just receive new values in the thir...
What's the easy way to auto create non existing dir in ansible
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Right now, this is the only way
- name: Ensures {{project_root}}/conf dir exists
file: path={{project_root}}/conf state=directory
- name: Copy file
template:
src: code.conf.j2
dest: "{{project_root}}/conf/code.conf"
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