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How would Git handle a SHA-1 collision on a blob?
...The question of using SHA-256 is regularly mentioned, but not act upon for now (2012).
Note: starting 2018 and Git 2.19, the code is being refactored to use SHA-256.
Note (Humor): you can force a commit to a particular SHA1 prefix, with the project gitbrute from Brad Fitzpatrick (bradfitz).
g...
How do you test functions and closures for equality?
...as kind of devastating because I had been storing closures in an Array and now can't remove them with indexOf({$0 == closure} so I have to refactor. IMHO optimization shouldn't influence language design, so without a quick fix like the now deprecated @objc_block in matt's answer, I would argue that...
How do I get an ISO 8601 date on iOS?
...SCalendar calendarWithIdentifier:NSCalendarIdentifierGregorian]];
NSDate *now = [NSDate date];
NSString *iso8601String = [dateFormatter stringFromDate:now];
And in Swift:
let dateFormatter = DateFormatter()
let enUSPosixLocale = Locale(identifier: "en_US_POSIX")
dateFormatter.locale = enUSPosixL...
What is VanillaJS?
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FYI: Vanilla JS is now 0 bytes, 25 bytes compressed.
– Trisped
Jun 19 '15 at 22:09
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Detecting that the browser has no mouse and is touch-only
... to unplug his mouse and go full touch.. do you wait for him to touch your now crammed interface, then change it right after he's made the effort to pinpoint your now crowded UI?
In bullet form, quoting stucox at https://github.com/Modernizr/Modernizr/issues/869#issuecomment-15264101
We want...
How to parse/format dates with LocalDateTime? (Java 8)
...calDateTime to Time Zone ISO8601 String
LocalDateTime ldt = LocalDateTime.now();
ZonedDateTime zdt = ldt.atZone(ZoneOffset.UTC); //you might use a different zone
String iso8601 = zdt.toString();
Convert from ISO8601 String back to a LocalDateTime
String iso8601 = "2016-02-14T18:32:04.150Z";
Zon...
Do copyright dates need to be updated? [closed]
Every now and then I see a web site that has an old copyright date. In my mind, I always think "Look at the sucker who forgot to update his copyright year!" Then, while I was hard-coding a copyright year into the site I'm currently designing, it suddenly struck me:
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Can someone explain this 'double negative' trick? [duplicate]
...e whether it's confusing or not. I personally find it highly intuitive to know what's "falsey" and what's "truthy" when cast to a Boolean.
– Chris
Jul 30 '13 at 3:15
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What's the difference between console.dir and console.log?
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Now it seems that console.log and console.dir actually return the same representation on [1,2,3] in Firefox.
– xji
Jun 18 '18 at 16:27
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Keep ignored files out of git status
...her of the above commands worked for me. In both cases git says it has no knowledge of the files in question but they still show up in git status :(
– Cfreak
Dec 28 '12 at 0:06
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