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Right way to reverse pandas.DataFrame?
...ay, month, year, etc.). So you may be working with a data frame, do a transformation on it, which messes up the indexing. It’s common to thus reindex the frame.
– Cybernetic
Jul 12 at 0:23
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How do I create delegates in Objective-C?
...ewhere, as discussed in the Apple Docs on protocols. You usually declare a formal protocol. The declaration, paraphrased from UIWebView.h, would look like this:
@protocol UIWebViewDelegate <NSObject>
@optional
- (void)webViewDidStartLoad:(UIWebView *)webView;
// ... other methods here
@end
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Why does make think the target is up to date?
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$window.unbind('scroll', onScroll);
}
};
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SQL selecting rows by most recent date
...ferent chargetype combinations.Hope this simple query helps with little performance time into consideration...
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How do I simply create a patch from my latest git commit?
...
In general,
git format-patch -n HEAD^
(check help for the many options), although it's really for mailing them.
For a single commit just
git show HEAD > some-patch0001.patch
will give you a useable patch.
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How can I set Image source with base64
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$window.unbind('scroll', onScroll);
}
};
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Java: splitting a comma-separated string but ignoring commas in quotes
... String otherThanQuote = " [^\"] ";
String quotedString = String.format(" \" %s* \" ", otherThanQuote);
String regex = String.format("(?x) "+ // enable comments, ignore white spaces
", "+ // match a comma
"(?= ...
Incorrect syntax near ')' calling stored procedure with GETDATE
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edited Apr 4 '11 at 6:01
answered Mar 8 '10 at 3:25
Mit...
String is immutable. What exactly is the meaning? [duplicate]
...taining "knowledge" and assigns it a reference str. Simple enough? Lets perform some more functions:
String s = str; // assigns a new reference to the same string "knowledge"
Lets see how the below statement works:
str = str.concat(" base");
This appends a string " base" to str. But wai...
Swift native base class or NSObject
... in Swift gets you Objective-C runtime flexibility but also Objective-C performance. Avoiding NSObject can improve performance if you don't need Objective-C's flexibility.
Edit:
With Xcode 6 beta 6, the dynamic attribute appears. This allows us to instruct Swift that a method should use dynamic di...