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Change UICollectionViewCell size on different device orientations
...ically in -viewDidLoad
self.portraitLayout = [[UICollectionViewFlowLayout alloc] init];
self.landscapeLayout = [[UICollectionViewFlowLayout alloc] init];
UIInterfaceOrientation orientationOnLunch = [[UIApplication sharedApplication] statusBarOrientation];
if (UIInterfaceOrientationIsPortrait(orie...
Why can't a text column have a default value in MySQL?
...ocs:
Each BLOB or TEXT value is represented internally by a separately allocated object. This is in contrast to all other data types, for which storage is allocated once per column when the table is opened.
It seems like pre-filling these column types would lead to memory usage and performance...
What Are Some Good .NET Profilers?
...o file)
Scitech .NET Memory Profiler
Shows stack trace when object was allocated. This is really useful for objects that are allocated in lots of different places. With ANTS it is difficult to determine exactly where the leaked object was created.
Shows count of disposable objects that were not ...
How to find the 'sizeof' (a pointer pointing to an array)?
... which is to stash the size somewhere. For example, if you're dynamically allocating the array, allocate a block one int bigger than the one you need, stash the size in the first int, and return ptr+1 as the pointer to the array. When you need the size, decrement the pointer and peek at the stashe...
Go > operators
...y Arithmetic operators and its the same in other languages here is a basic PHP , C , Go Example
GO
package main
import (
"fmt"
)
func main() {
var t , i uint
t , i = 1 , 1
for i = 1 ; i < 10 ; i++ {
fmt.Printf("%d << %d = %d \n", t , i , t<<i)
}
...
How to run a shell script on a Unix console or Mac terminal?
...er from the same folder, still using #!hashbang in scripts.
As example a php7.2 executable copied from /usr/bin is in a folder along a hello script.
#!./php7.2
<?php
echo "Hello!";
To run it:
./hello
Which behave just as equal as:
./php7.2 hello
...
How to break/exit from a each() function in JQuery? [duplicate]
...e;
+----------------------------------------+
| JavaScript | PHP |
+-------------------------+--------------+
| | |
| return false; | break; |
| | |
| return true; or return; | continue; ...
POST unchecked HTML checkboxes
...to put the hidden input first, per many the other answers. If you're using PHP, you can then do away with the javascript dependency, because only the last value gets used.
– Ben
Sep 13 '13 at 17:40
...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...ws IOException {
for (int i = 0; i < bucket.length; i++) { // allocate buckets
bucket[i] = new Bucket();
}
for(int i=0; i< NUM_COUNT; i++) { // produce some data
int value = p.produce();
int bucketId = value/BUCKET_RANGE;
...
What is NSZombie?
...nabled then whenever an object reaches retain count 0, rather than being deallocated it morphs itself into an NSZombie instance. Whenever such a zombie receives a message, it logs a warning rather than crashing or behaving in an unpredictable way. As such, you can debug subtle over-release/autorelea...