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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
...
Why does make think the target is up to date?
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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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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
"(?= ...
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...
“’” showing on page instead of “ ' ”
...display the characters in. The exact answer depends on the server side platform / database / programming language used. Do note that the one set in HTTP response header has precedence over the HTML meta tag. The HTML meta tag would only be used when the page is opened from local disk file system ins...
How to undo the effect of “set -e” which makes bash exit immediately if any command fails?
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