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Difference between single and double square brackets in Bash
...nsion.
expr a \< b > /dev/null: POSIX equivalent², see: How to test strings for lexicographic less than or equal in Bash?
&& and ||
[[ a = a && b = b ]]: true, logical and
[ a = a && b = b ]: syntax error, && parsed as an AND command separator cmd1 &&...
How to add a line break in C# .NET documentation
...ch element.</para>
/// Rather than return SQL, this method returns a string with icon-tokens, which
/// could be used to represent the search in a condensed pictogram format.
/// </summary>
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How can I safely encode a string in Java to use as a filename?
I'm receiving a string from an external process. I want to use that String to make a filename, and then write to that file. Here's my code snippet to do this:
...
Fluid width with equally spaced DIVs
...>
<span class="stretch"></span>
</div>
The extra span (.stretch) can be replaced with :after.
This still works in all the same browsers as the above solution. :after doesn't work in IE6/7, but they're using distribute-all-lines anyway, so it doesn't matter.
See: htt...
Executing multiple commands from a Windows cmd script
...e call for it as in call mvn install; normally you don't need to create an extra cmd file.
– jfpoilpret
Sep 13 '12 at 8:17
2
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Get a filtered list of files in a directory
...ead for very large data sets, but for listing a directory and other simple string filtering tasks, list comprehensions lead to more clean documentable code.
The only thing about this design is that it doesn't protect you against making the mistake of passing a string instead of a list. For example...
How do I convert from int to String?
I'm working on a project where all conversions from int to String are done like this:
20 Answers
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Pythonic way to print list items
...
To add format(), replace the str(x) with a format string: print " ".join(["{:02d}".format(x) for x in l])
– ChrisFreeman
Apr 26 '16 at 6:34
add a comm...
List of Rails Model Types
...
:binary
:boolean
:date
:datetime
:decimal
:float
:integer
:primary_key
:string
:text
:time
:timestamp
These are documented under column in the Active Record API.
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enum - getting value of enum on string conversion
...d a __str__ method to your enum, if all you wanted was to provide a custom string representation:
class D(Enum):
def __str__(self):
return str(self.value)
x = 1
y = 2
Demo:
>>> from enum import Enum
>>> class D(Enum):
... def __str__(self):
... ...