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Decorators with parameters?
... It's also weird that you'd "call" the function with a signature different from the one in the definition. As you point out, it would fit pretty well actually - it's pretty much analogous to how a class method is called. To make it more clear, you could have something like decorator(self_func, para...
How to check whether dynamically attached event listener exists or not?
...;
}
Step 4: Finally, you will need a function that can delete a listener from the storage object.
/* The function that removes a listener from a given element & its storage record. */
function removeListener (element, event, listener, options) {
/* Use the element given to retrieve the re...
How to flip background image using CSS?
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@JitendraVyas hello from 2016! I was considering suggesting an edit to fix the jsfiddle URL as it still links to different code than is in your answer here - care to edit the post or remove the link? Thanks :)
– totallyNotL...
Open file in a relative location in Python
...your actual working directory is. For example, you may not run the script from the directory the file is in. In this case, you can't just use a relative path by itself.
If you are sure the file you want is in a subdirectory beneath where the script is actually located, you can use __file__ to hel...
How to pass event as argument to an inline event handler in JavaScript?
... data binding. You can access any method of the parent web component class from the inline events onclick="toggleBtnActive.call(this, true)".
– Adrian Moisa
Dec 9 '17 at 18:08
...
Using vagrant to run virtual machines with desktop environment
...
I just got this working with basically three steps. The advice from askubuntu.com didn't quite work for me, so try this simplified version:
Get a basic Ubuntu image working. You should be able to boot it and vagrant ssh.
Next, enable the VirtualBox display, which is off by default. Hal...
What does “#define _GNU_SOURCE” imply?
...nux extension functions
access to traditional functions which were omitted from the POSIX standard (often for good reason, such as being replaced with better alternatives, or being tied to particular legacy implementations)
access to low-level functions that cannot be portable, but that you sometime...
SQL keys, MUL vs PRI vs UNI
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DESCRIBE <table>;
This is acutally a shortcut for:
SHOW COLUMNS FROM <table>;
In any case, there are three possible values for the "Key" attribute:
PRI
UNI
MUL
The meaning of PRI and UNI are quite clear:
PRI => primary key
UNI => unique key
The third possibility, MUL...
How to copy an object in Objective-C
...l - the Objective C manual calls such an object "functionally independent" from it's original. Because the mechanisms for making these "intelligent" copies varies from class to class, we ask the objects themselves to perform them. This is the NSCopying protocol.
You want the latter. If this is one...
Visual Studio 2010 always thinks project is out of date, but nothing has changed
...er) answers for VS2012, VS2013, etc
To find the missing file(s), use info from the article Enable C++ project system logging to enable debug logging in Visual Studio and let it just tell you what's causing the rebuild:
Open the devenv.exe.config file (found in %ProgramFiles%\Microsoft Visual Stud...