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Checking that a List is not empty in Hamcrest
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Lachlan Lindsay
69766 silver badges2020 bronze badges
answered Sep 2 '10 at 20:47
skaffmanskaffman
374k9292 gold b...
Importing a Swift protocol in Objective-C class
...e?
– Jamie Forrest
Jun 6 '14 at 14:40
Adding @objc helped me with importing Swift classes in to Obj-C
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Java HashMap performance optimization / alternative
...ted out the hashCode() method was to blame. It was only generating around 20,000 codes for 26 million distinct objects. That is an average of 1,300 objects per hash bucket = very very bad. However if I turn the two arrays into a number in base 52 I am guaranteed to get a unique hash code for every o...
Deserializing a JSON into a JavaScript object
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402
Modern browsers support JSON.parse().
var arr_from_json = JSON.parse( json_string );
In brow...
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
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80
Well considering there's no overhead difference between a varchar(30) and a varchar(100) if you'...
Draw radius around a point in Google map
I'm using the Google Maps API and have added markers. Now I want to add a 10 mile radius around each marker, meaning a circle that behaves appropriately while zooming. I have no idea how to do that and it seems it's not something common.
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Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
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107
Signed integer overflow (as strictly speaking, there is no such thing as "unsigned integer over...
Does MySQL ignore null values on unique constraints?
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440
Yes, MySQL allows multiple NULLs in a column with a unique constraint.
CREATE TABLE table1 (x I...
How to output numbers with leading zeros in JavaScript [duplicate]
...und but is there a way to round left of the decimal? for example 5 becomes 05 if I specify 2 places
6 Answers
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Number of days between two NSDates [duplicate]
...mponents:NSCalendarUnitDay
fromDate:fromDate toDate:toDate options:0];
return [difference day];
}
EDIT:
Fantastic solution above, here's Swift version below as an extension on NSDate:
extension NSDate {
func numberOfDaysUntilDateTime(toDateTime: NSDate, inTimeZone timeZone: NSTime...