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Jackson serialization: ignore empty values (or null)
...aving some trouble ignoring fields when I'm converting an object to a JSON string.
8 Answers
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How do I get hour and minutes from NSDate?
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Use an NSDateFormatter to convert string1 into an NSDate, then get the required NSDateComponents:
Obj-C:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"<your date format goes here"];
NSDate *date = [dateFo...
Amazon S3 Change file download name
...mention that it was not me to provide the right answer on Amazon forum and all credits should go to Colin Rhodes ;-)
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How do you use NSAttributedString?
Multiple colours in an NSString or NSMutableStrings are not possible. So I've heard a little about the NSAttributedString which was introduced with the iPad SDK 3.2 (or around 3.2) and is available on the iPhone as of iPhone SDK 4.0 beta .
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AppSettings get value from .config file
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This works for me:
string value = System.Configuration.ConfigurationManager.AppSettings[key];
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Why is Java's SimpleDateFormat not thread-safe? [duplicate]
... }
};
}
public SimpleDateFormatThreadSafe(final String pattern) {
super(pattern);
localSimpleDateFormat = new ThreadLocal<SimpleDateFormat>() {
protected SimpleDateFormat initialValue() {
return new SimpleDateFormat(pattern...
Have nginx access_log and error_log log to STDOUT and STDERR of master process
...our entrypoint (executed after volumes are mounted) or not use a volume at all (e.g. when logs are already collected by a central logging system).
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How to delete all files and folders in a directory?
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note that Empty exists in C# already, for string. If I saw something else named Empty I would be surprised if it modified the object (or filesystem) instead of giving me a bool that says if it is empty or not. Because of that, I would go with the name Clean.
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Using isKindOfClass with Swift
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Another approach using the new Swift 2 syntax is to use guard and nest it all in one conditional.
guard let touch = object.AnyObject() as? UITouch, let picker = touch.view as? UIPickerView else {
return //Do Nothing
}
//Do something with picker
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Converting .NET DateTime to JSON [duplicate]
... This will come in handy too: var re = /-?\d+/; var m = re.exec(json_date_string); var d = new Date(parseInt(m[0]));
– Tominator
Sep 15 '09 at 8:03
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