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Reusable library to get human readable version of file size?
...**exponent
unit, num_decimals = unit_list[exponent]
format_string = '{:.%sf} {}' % (num_decimals)
return format_string.format(quotient, unit)
if num == 0:
return '0 bytes'
if num == 1:
return '1 byte'
To make it more clear what is going on, we can om...
Behaviour of increment and decrement operators in Python
...t I presume that you wouldn't expect a hypothetical ++ operator to work on strings.)
++count
Parses as
+(+count)
Which translates to
count
You have to use the slightly longer += operator to do what you want to do:
count += 1
I suspect the ++ and -- operators were left out for consistency...
Why are my balls disappearing? [closed]
...tyX);
ball2.nextY = (ball2.nextY += ball2.velocityY);
You don't need the extra assignments, and can just use the += operator alone:
ball1.nextX += ball1.velocityX;
ball1.nextY += ball1.velocityY;
ball2.nextX += ball2.velocityX;
ball2.nextY += ball2.velocityY;
...
Should I use “hasClass” before “addClass”? [duplicate]
...l because jQuery will also always check from within .addClass(). It's just extra work.
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How do I perform a Perl substitution on a string while keeping the original?
In Perl, what is a good way to perform a replacement on a string using a regular expression and store the value in a different variable, without changing the original?
...
Update relationships when saving changes of EF4 POCO objects
...e property "ReportRoles". The new roles are passed in by a comma separated string from an Ajax call.
The first line will remove all the child entities, and if I used "report.ReportRoles.Remove(f)" instead of the "db.ReportRoles.Remove(f)" I would get the error.
report.ReportRoles.ToList.ForEach(Fu...
Checking if a double (or float) is NaN in C++
...em -finput-charset=windows-1252
@g++ -O -pedantic -std=c++98 -Wall -Wwrite-strings %* -Wno-long-long
C:\test> gnuc x.cpp
C:\test> a && echo works... || echo !failed
works...
C:\test> gnuc x.cpp --fast-math
C:\test> a && echo works... || echo !failed
Assertion failed: ...
What's the $unwind operator in MongoDB?
...nds array produce an output document. Now, in this example, our values are strings. But, regardless of the type of value for the elements in an array, unwind will produce an output document for each one of these values, such that the field in question will have just that element. In the case of fund...
Can I use assert on Android devices?
...e the method is defined as:
public static void _assert(boolean condition, String message) {
if (!condition) {
throw new AssertionError(message);
}
}
The Oracle java docs recommend throwing an AssertionError as an acceptable alternative.
I guess you can configure Proguard to strip...
How to use HTML Agility pack
... containing the html
htmlDoc.Load(filePath);
// Use: htmlDoc.LoadHtml(xmlString); to load from a string (was htmlDoc.LoadXML(xmlString)
// ParseErrors is an ArrayList containing any errors from the Load statement
if (htmlDoc.ParseErrors != null && htmlDoc.ParseErrors.Count() > 0)
{
...