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UINavigationBar custom back button without title

... controller name self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil]; Swift 2 self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil) Swift 3 self.navigatio...
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Laravel migration: unique key is too long, even if specified

...tions guide to fix this all you have to do is edit your AppServiceProvider.php file and inside the boot method set a default string length: use Illuminate\Database\Schema\Builder; public function boot() { Builder::defaultStringLength(191); } ...
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PHP - Move a file into a different folder on the server

... they no longer want them. I was previously using the unlink function in PHP but have since been told that this can be quite risky and a security issue. (Previous code below:) ...
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Python memory leaks [closed]

... Tracemalloc module was integrated as a built-in module starting from Python 3.4, and appearently, it's also available for prior versions of Python as a third-party library (haven't tested it though). This module is able to output ...
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Remove empty space before cells in UITableView

...his problem with code like this: self.refreshControl = [[UIRefreshControl alloc] init];{ [self.refreshControl setAttributedTitle:[[NSAttributedString alloc] initWithString:@"Your string"]]; [self.refreshControl addTarget:self ...
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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...
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Show a PDF files in users browser via PHP/Perl

... <?php header('Content-type: application/pdf'); header('Content-Disposition: inline; filename="the.pdf"'); readfile('/dir/to/the.pdf'); ?> – dimassony Jan 13 '11 at 13:10 ...
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Devise Secret Key was not set

...me::Application.config.secret_key_base found in config/initializers/secret_token.rb share | improve this answer | follow | ...
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How to resize superview to fit all subviews with autolayout?

...ad]; // INIT ALL REQUIRED UI ELEMENTS self.contentView = [[UIView alloc] init]; self.myLabel = [[UILabel alloc] init]; self.myOtherLabel = [[UILabel alloc] init]; NSDictionary *viewsDictionary = NSDictionaryOfVariableBindings(_contentView, _myLabel, _myOtherLabel); // TURN ...
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Reset C int array to zero : the fastest way?

...imized by hand. memset(myarray, 0, sizeof(myarray)); // for automatically-allocated arrays memset(myarray, 0, N*sizeof(*myarray)); // for heap-allocated arrays, where N is the number of elements By the way, in C++ the idiomatic way would be to use std::fill (from <algorithm>): std::fill(...