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Deleting folders in python recursively
...led removals will be ignored; if false or omitted, such errors are handled by calling a handler specified by onerror or, if that is omitted, they raise an exception."
– microo8
Oct 29 '12 at 8:36
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jQuery select2 get value of select tag?
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for an select called by id name instead of class name, use: $(".first").val()
– Rui Martins
Jun 21 '17 at 9:15
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How to do relative imports in Python?
...the question.
The problem is that you're running the module as '__main__' by passing the mod1.py as an argument to the interpreter.
From PEP 328:
Relative imports use a module's __name__ attribute to determine that module's position in the package hierarchy. If the module's name does not conta...
Best way to detect that HTML5 is not supported
...f checking for the existence of getContext, also used in a similar fashion by the Modernizr library:
var canvasSupported = !!document.createElement("canvas").getContext;
Checking the existence of the HTMLCanvasElement interface, as defined by the WebIDL and HTML specifications. This approach w...
writing some characters like '
... follow Moss guide: How can I write character & in android strings.xml by used Unicode definition:
Example:
<string name="item_unknown">\u003c Item Unknown \u003e</string>
which present in string :
< Item Unknown >
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JMS and AMQP - RabbitMQ
...ng complex :D I hope you are not a teacher :) ) Let's see all of these one by one.
As you know:
The Java Message Service (JMS) API is a Java Message Oriented Middleware (MOM) API for sending messages between two or more clients. JMS is a part of the Java Platform, Enterprise Edition, and is define...
How to escape % in String.Format?
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"I can't believe that this isn't a simple solved problem by now" << You answered 6 years after a simple solution was accepted.
– AjahnCharles
Nov 21 '18 at 14:22
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Copy constructor for a class with unique_ptr
...to ensure the derived class is copied correctly.
This can be accomplished by adding the following code:
struct Base
{
//some stuff
auto clone() const { return std::unique_ptr<Base>(clone_impl()); }
protected:
virtual Base* clone_impl() const = 0;
};
struct Derived : public Base...
Get to UIViewController from UIView?
...s achieved
There is no built-in way to do it. While you can get around it by adding a IBOutlet on the UIView and connecting these in Interface Builder, this is not recommended. The view should not know about the view controller. Instead, you should do as @Phil M suggests and create a protocol to be...
Where can I set environment variables that crontab will use?
...ns the job from the terminal, however, obviously these don't get picked up by crontab when it runs.
14 Answers
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