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Type converting slices of interfaces
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In Go, there is a general rule that syntax should not hide complex/costly operations. Converting a string to an interface{} is done in O(1) time. Converting a []string to an interface{} is also done in O(1) time since a slice is still one value. However, converting a []string to ...
Responsive website zoomed out to full width on mobile
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Add this to your HTML head..
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
This tells smaller device browsers how to scale the page. You can read more about this here: https://developer.apple.com/library/content/documentation/AppleApplicatio...
Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.”
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Resetting simulator didn't work for me. However starting Charles made issue to disappear. See stackoverflow.com/a/26066764/598057 which suggests using Charles. Very strange but works...
– Stanislav Pankevich
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lock(new object()) — Cargo cult or some crazy “language special case”?
... who saw this:
private readonly object lockObj = new object();
private void MyMethod()
{
lock(lockObj)
{
// do amazing stuff, so amazing it can only run once at a time
// e.g. comands on the Mars Rover, or programs on iOS pre 4 / 5 ??
}
}
and thought he could cut the ...
Date.getDay() javascript returns wrong day
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Really dumb that the designer of this function didn't call it getDayOf Week. No, that would have been too obvious.
– AndroidDev
Jan 27 '14 at 11:06
42
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Large Numbers in Java
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Time to compute: 58.1 seconds.
*/
public class Main {
public static void main(String... args) {
int place = args.length > 0 ? Integer.parseInt(args[0]) : 250 * 1000;
long start = System.nanoTime();
BigInteger fibNumber = fib(place);
long time = System.nanoTime...
How to detect if a specific file exists in Vimscript?
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I get E116: Invalid arguments for function. How do you specify the file relative to the home directory to check for a plugin? (See also here)
– Scz
Jul 23 '15 at 9:23
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What is the difference between `-fpic` and `-fPIC` gcc parameters?
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What's more: I did a little experiment here (on x86_64 platform), -fPIC and -fpic appears to have generated the same code. It seems they generate a different code only on m68k, PowerPC and SPARC.
– Denilson Sá Maia
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Combining node.js and Python
...ON or protocol buffer. If threaded Python shows up to be a bottleneck, consider using Twisted Python, which
provides the same event driven concurrency as do node.js.
If you feel adventurous, learn clojure (clojurescript, clojure-py) and you'll get the same language that runs and interoperates with ...
Postgresql - change the size of a varchar column to lower length
...e SQL standard. If you don't care about multi-database compatibility, consider storing your data as TEXT and add a constraint to limits its length. Constraints you can change around without this table lock/rewrite problem, and they can do more integrity checking than just the weak length check.
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