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Should you always favor xrange() over range()?
...original)
+++ range_test.py (refactored)
@@ -1,7 +1,7 @@
for x in range(20):
- a=range(20)
+ a=list(range(20))
b=list(range(20))
c=[x for x in range(20)]
d=(x for x in range(20))
- e=xrange(20)
+ e=range(20)
As you can see, when used in a for loop or comprehension, or ...
MySQL SELECT WHERE datetime matches day (and not necessarily time)
...wing 4 records, then only the 2nd and 3rd would be returned if I limit to 2012-12-25.
4 Answers
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How to store CGRect values in NSMutableArray?
...eArray mutableArray];
[array addObject:[NSValue valueWithCGRect:CGRectMake(0,0,10,10)]];
CGRect someRect = [[array objectAtIndex:0] CGRectValue];
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How do you delete an ActiveRecord object?
...like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent association options.
User.delete_all(condition: ...
Retina displays, high-res background images
...
Do I need to double the size of the .box div to 400px by 400px to
match the new high res background image
No, but you do need to set the background-size property to match the original dimensions:
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
...
ruby convert array into function arguments
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104
You can turn an Array into an argument list with the * (or "splat") operator:
a = [0, 1, 2, 3,...
Download a specific tag with Git
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2903
$ git clone
will give you the whole repository.
After the clone, you can list the tags with ...
File extension for PowerShell 3
...dMike Shepard
15.2k66 gold badges4545 silver badges6060 bronze badges
10
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How can I String.Format a TimeSpan object with a custom format in .NET?
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250
Please note: this answer is for .Net 4.0 and above. If you want to format a TimeSpan in .Net 3....
Delete all data in SQL Server database
...
10 Answers
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