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How do I wait for an asynchronously dispatched block to finish?
...onHandler.
– BTRUE
Apr 22 '17 at 13:06
add a comment
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Why are Docker container images so large?
...dations from @Andy and @michau I was able to resize my nodejs image from 1.062 GB to 542 MB.
Edit:
One more important thing:
"It took me a while to really understand that each Dockerfile command creates a new container with the deltas. [...] It doesn't matter if you rm -rf the files in a later comm...
How can I configure my makefile for debug and release builds?
...
– Jefferson Hudson
Sep 22 '16 at 15:06
@JeffersonHudson If source files are in a directory named src, then modify the ...
autolayout - make height of view relative to half superview height
...youtConstraint
constraintsWithVisualFormat:@"V:[topLayoutGuide]-0-[_view1]-0-[_view2(==_view1)]-0-[bottomLayoutGuide]"
options:0
metrics:nil
views:viewsDict]];
...
Why can't code inside unit tests find bundle resources?
... Library/
Developer/
CoreSimulator/
Devices/
_UUID_/
data/
Containers/
Bundle/
Application/
_UUID_/
App.app/
Also note the unit test executable is, by default, linked ...
Browser detection in JavaScript? [duplicate]
...sions.
– derloopkat
Mar 7 '17 at 17:06
2
Have a look at this other answer for documentation on wh...
jQuery UI Sortable, then write order into a database
...elements' positions accordingly.
For example, in PHP:
$i = 0;
foreach ($_POST['item'] as $value) {
// Execute statement:
// UPDATE [Table] SET [Position] = $i WHERE [EntityId] = $value
$i++;
}
Example on jsFiddle.
...
Set the maximum character length of a UITextField
...th] - range.length;
return newLength <= 25;
}
Swift
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
let currentCharacterCount = textField.text?.count ?? 0
if range.length + range.location > curre...
How do I write the 'cd' command in a makefile?
...
It is actually executing the command, changing the directory to some_directory, however, this is performed in a sub-process shell, and affects neither make nor the shell you're working from.
If you're looking to perform more tasks within some_directory, you need to add a semi-colon and appen...
How to force a web browser NOT to cache images
...ile.jpg&some-random-number-262376" />
Script:
// PHP
if( isset( $_GET['img'] ) && is_file( IMG_PATH . $_GET['img'] ) ) {
// read contents
$f = open( IMG_PATH . $_GET['img'] );
$img = $f.read();
$f.close();
// no-cache headers - complete set
// these copied from [php.n...