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What is the Swift equivalent to Objective-C's “@synchronized”?
I've searched the Swift book, but can't find the Swift version of @synchronized. How do I do mutual exclusion in Swift?
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?
...revision history)
I'm not very familiar at all with storyboard, but I do know that you can construct your interface in IB using a .xib file which is nearly identical to using the storyboard version; You should even be able to copy & paste your views as a whole from your existing interface to th...
After submitting a POST form open a new window showing the result
...ow to submit a form that you create via POST in JavaScript. Below is my modified code.
5 Answers
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Exit codes in Python
...find in /usr/include/asm-generic/errno.h (on a Linux system), but I don't know if this is the right thing to do.
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Virtual/pure virtual explained
...ion defines a target function to be executed, but the target might not be known at compile time.
Unlike a non-virtual function, when a virtual function is overridden the most-derived version is used at all levels of the class hierarchy, rather than just the level at which it was created. Therefore...
How to use a decimal range() step value?
...btain). linspace takes a number of points to return, and also lets you specify whether or not to include the right endpoint:
>>> np.linspace(0,1,11)
array([ 0. , 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1. ])
>>> np.linspace(0,1,10,endpoint=False)
array([ 0. , 0.1, ...
How do I check two or more conditions in one ?
How do I check two conditions in one <c:if> ? I tried this, but it raises an error:
4 Answers
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How to get Chrome to allow mixed content?
...resh and the scripts should start working. What used to be an error,
is now merely a warning,
OS: Windows 10
Chrome Version: 76.0.3809.132 (Official Build) (64-bit)
Edit #1
On version 66.0.3359.117, the shield icon is still available:
Notice how the popup design has changed, so this is...
How do I associate a Vagrant project directory with an existing VirtualBox VM?
... your "Vagrantfile" to track the UUID of your VM. This file will not exist if a VM does not exist. The format of the file is JSON. It looks like this if a single VM exists:
{
"active":{
"default":"02f8b71c-75c6-4f33-a161-0f46a0665ab6"
}
}
default is the name of the default virtual mac...
About catching ANY exception
...with exceptions and tracking them all down can be a very painful task, and if you miss just one, you have a very very huge painful bug in your system. That being said, it's good to track down as many as you can and handle them appropriately and then have a backup catch all for the ones you miss.
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