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Tools for JPEG optimization? [closed]
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I use libjpeg for lossless operations. It contains a command-line tool jpegtran that can do all you want. With the commandline option -copy none all the metadata is stripped, and -optimize does a lossless optimization of the Huffmann compression. You can als...
How to Empty Caches and Clean All Targets Xcode 4 and later
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Command-Option-Shift-K to clean out the build folder. Even better, quit Xcode and clean out ~/Library/Developer/Xcode/DerivedData manually. Remove all its contents because there's a bug where Xcode will run an old version of your projec...
How to create NSIndexPath for TableView
I need delete row 1 of a table in a function I have defined. In order to use deleteRowAtIndexPath you must use an IndexPath with a section and row defined. How can I create an indexpath like this?
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Convert a byte array to integer in Java and vice versa
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Use the classes found in the java.nio namespace, in particular, the ByteBuffer. It can do all the work for you.
byte[] arr = { 0x00, 0x01 };
ByteBuffer wrapped = ByteBuffer.wrap(arr); // big-endian by default
short num = wrapped.getShort(); // 1
ByteBuffer ...
How to specify different Debug/Release output directories in QMake .pro file
I have a Qt project and I would like to output compilation files outside the source tree.
11 Answers
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Removing rounded corners from a element in Chrome/Webkit
... you need to add the arrows e.g. as background image with position 100% 50% and no-repeat attribute. I also used base64 encoded image in css to avoid additional http requests.
– Karl Adler
Jul 23 '14 at 12:27
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How to Correctly handle Weak Self in Swift Blocks with Arguments
...why you had to go with [weak self] instead.
I really liked the whole section from the manual on using strong, weak, and unowned in closures:
https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/AutomaticReferenceCounting.html
Note: I used the term...
unobtrusive validation not working with dynamic content
I'm having problems trying to get the unobtrusive jquery validation to work with a partial view that is loaded dynamically through an AJAX call.
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What's the Best Way to Shuffle an NSMutableArray?
...utableArray_Shuffling.m
#import "NSMutableArray_Shuffling.h"
@implementation NSMutableArray (Shuffling)
- (void)shuffle
{
NSUInteger count = [self count];
if (count <= 1) return;
for (NSUInteger i = 0; i < count - 1; ++i) {
NSInteger remainingCount = count - i;
N...
Check if page gets reloaded or refreshed in JavaScript
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⚠️⚠️⚠️ window.performance.navigation.type is deprecated, pls see Илья Зеленько's answer
A better way to know that the page is actually reloaded is to use the navigator object that is supported by most modern browsers.
It uses the Navigation Timi...