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@import vs #import - iOS 7
I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in the WWDC video "Implementing Engaging UI on iOS". For producing a blur effect within the source code for the session, UIImage was extended via a category which imports UIKit like so:
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How do RVM and rbenv actually work?
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edited Feb 23 '12 at 23:27
answered Feb 23 '12 at 22:20
Sa...
How to convert String to long in Java?
...eLong()
Long.parseLong("0", 10) // returns 0L
Long.parseLong("473", 10) // returns 473L
Long.parseLong("-0", 10) // returns 0L
Long.parseLong("-FF", 16) // returns -255L
Long.parseLong("1100110", 2) // returns 102L
Long.parseLong("99", 8) // throws a NumberFo...
What MySQL data type should be used for Latitude/Longitude with 8 decimal places?
...REATE TABLE `buildings` (
`coordinate` POINT NOT NULL,
/* Even from v5.7.5 you can define an index for it */
SPATIAL INDEX `SPATIAL` (`coordinate`)
) ENGINE=InnoDB;
/* then for insertion you can */
INSERT INTO `buildings`
(`coordinate`)
VALUES
(POINT(40.71727401 -74.00898606));
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Correct way to delete cookies server-side
...s field as well:
Set-Cookie: token=deleted; path=/; expires=Thu, 01 Jan 1970 00:00:00 GMT
Note that you cannot force all browsers to delete a cookie. The client can configure the browser in such a way that the cookie persists, even if it's expired. Setting the value as described above would solve...
Calculate the number of business days between two dates?
...t businessDays = span.Days + 1;
int fullWeekCount = businessDays / 7;
// find out if there are weekends during the time exceedng the full weeks
if (businessDays > fullWeekCount*7)
{
// we are here to find out if there is a 1-day or 2-days weekend
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Would it be beneficial to begin using instancetype instead of id?
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answered Jan 23 '12 at 18:47
Catfish_ManCatfish_Man
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Do you have to put Task.Run in a method to make it async?
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597
First, let's clear up some terminology: "asynchronous" (async) means that it may yield control b...
Does free(ptr) where ptr is NULL corrupt memory?
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227
7.20.3.2 The free function
Synopsis
#include <stdlib.h>
void free(void *ptr); ...
prototype based vs. class based inheritance
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edited Nov 19 '13 at 17:19
tig
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answered Ma...