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NSPredicate: filtering objects by day of NSDate property
...rmatter.dateFormat = "yyyy-MM-dd"
let date = dateFormatter.dateFromString(predicate)
let calendar = NSCalendar(calendarIdentifier: NSGregorianCalendar)
let components = calendar!.components(
NSCalendarUnit.CalendarUnitYear |
NSCalendarUnit.Calendar...
Searching subversion history (full text)
...
strings myDump.txt | grep "turtle fwd 10"
– jedierikb
Jul 14 '12 at 2:31
2
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Is there a way to dump a stack trace without throwing an exception in java?
...
Thread.currentThread().getStackTrace()
To find the caller, do:
private String getCallingMethodName() {
StackTraceElement callingFrame = Thread.currentThread().getStackTrace()[4];
return callingFrame.getMethodName();
}
And call that method from within the method that needs to know who i...
How can I add to List
...t you add a number
untypedList.add(200);
// But it will also let you add a String! BAD!
untypedList.add("foo");
// YOU PROBABLY WANT THIS
// This is safer, because it will (partially) check the type of anything you add
List<Number> superclassedList = (List<Number>)(List<?>)list;
...
Can't use method return value in write context
...This isn't true - empty() covers many more possibilities than just a blank string
– Robbie Averill
Apr 7 '15 at 3:44
3
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Checking length of dictionary object [duplicate]
...th. Are you manually setting 0 on the object, or are you relying on custom string keys? eg obj['foo'] = 'bar';. If the latter, again, why the need for length?
Edit #1: Why can't you just do this?
list = [ {name:'john'}, {name:'bob'} ];
Then iterate over list? The length is already set.
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Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...for 'this', 'that', and 'there' - and then comparing hash codes instead of strings. That turned out to be twice as slow as the original, so it looks like string comparisons are already pretty well optimised internally.
– foz
Jun 18 '13 at 16:23
...
Count number of days between two dates
...re making an unwarranted assumption. The user does not specify if they are strings or not. In fact since they are using Rails it's most likely the dates are coming from ActiveRecord which will automatically cast them to date objects. The given text is identical to Date object representation as well,...
Is there a way to squash a number of commits non-interactively?
...elif [ -z "$commitMsg" ]
then
echo "Invalid commit message. Make sure string is not empty"
else
echo "...input looks good"
echo "...proceeding to squash"
git reset --soft HEAD~$squashCount
git commit -m "$commitMsg"
echo "...done"
fi
echo
exit 0
Then to hook up that squas...
MySQL - ORDER BY values within IN()
...'A', 'D', 'E', 'C')
The FIELD function returns the position of the first string in the remaining list of strings.
However, it is much better performance-wise to have an indexed column that represents your sort order, and then sort by this column.
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