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Convert an NSURL to an NSString
I have an app where the user can choose an image either from the built-in app images or from the iphone photo library. I use an object Occasion that has an NSString property to save the imagePath .
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Save modifications in place with awk
... has the option of "inplace" file editing:
[...] The "inplace" extension, built using the new facility, can be used to simulate the GNU "sed -i" feature. [...]
Example usage:
$ gawk -i inplace '{ gsub(/foo/, "bar") }; { print }' file1 file2 file3
To keep the backup:
$ gawk -i inplace -v INPLACE_S...
Get the first element of an array
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Original answer, but costly (O(n)):
array_shift(array_values($array));
In O(1):
array_pop(array_reverse($array));
Other use cases, etc...
If modifying (in the sense of resetting array pointers) of $array is not a problem, you might use...
Remove HTML Tags from an NSString on the iPhone
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A quick and "dirty" (removes everything between < and >) solution, works with iOS >= 3.2:
-(NSString *) stringByStrippingHTML {
NSRange r;
NSString *s = [[self copy] autorelease];
while ((r = [s rangeOfString:@"<[^>]+>" options:NSRegularEx...
MySQL Cannot drop index needed in a foreign key constraint
I need to ALTER my existing database to add a column. Consequently I also want to update the UNIQUE field to encompass that new column. I'm trying to remove the current index but keep getting the error MySQL Cannot drop index needed in a foreign key constraint
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How do I pass a class as a parameter in Java?
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public void foo(Class c){
try {
Object ob = c.newInstance();
} catch (InstantiationException ex) {
Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
} catch (Ille...
Pick a random value from an enum?
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The only thing I would suggest is caching the result of values() because each call copies an array. Also, don't create a Random every time. Keep one. Other than that what you're doing is fine. So:
public enum Letter {
A,
B,
C,
//...
private static final List<Letter> VALUE...
Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
I use git for personal projects and think it's great. It's fast, flexible, powerful, and works great for remote development.
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How do I preserve line breaks when using jsoup to convert html to plain text?
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The real solution that preserves linebreaks should be like this:
public static String br2nl(String html) {
if(html==null)
return html;
Document document = Jsoup.parse(html);
document.outputSettings(new Document.OutputSettings().prettyPrint(f...
How can I test an AngularJS service from the console?
...DR: In one line the command you are looking for:
angular.element(document.body).injector().get('serviceName')
Deep dive
AngularJS uses Dependency Injection (DI) to inject services/factories into your components,directives and other services. So what you need to do to get a service is to get th...