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How to check if a variable is a dictionary in Python?
...ing works here, just wrap for k,v in ele.items() in try...except (AttributeError, TypeError). If exception is raised, you know ele has no items that yields an iterable...
– cowbert
Jul 14 '18 at 3:31
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Executing elements inserted with .innerHTML
.... Here is a very interesting solution to your problem:
http://24ways.org/2005/have-your-dom-and-script-it-too
So it would look like this instead:
<img src="empty.gif" onload="alert('test');this.parentNode.removeChild(this);" />
...
How to change a module variable from another module?
...
105
You are using from bar import a. a becomes a symbol in the global scope of the importing module...
Rails 4 multiple image or file upload using carrierwave
... from saving. Instead the post is saved, and then the ActiveRecord invalid error is thrown for the attachment model only. I think this is because of the create! method. but using create instead just fails silently. Any idea how to have the validation happen on the post reach into the attachments?
...
Compiling problems: cannot find crt1.o
... On Ubuntu this worked sudo apt-get install gcc-multilib and it fixed my error from gfortran -m32 ...
– randwa1k
Sep 10 '14 at 1:11
1
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How to print third column to last column?
...
answered Oct 21 '09 at 18:05
Paused until further notice.Paused until further notice.
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Has Facebook sharer.php changed to no longer accept detailed parameters?
...echo 'Please <a href="' . $login_url . '">login.</a>';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
// No user, so print a link for the user to login
// To post to a user's wall, we need publish_stream permission
...
Serializing class instance to JSON
...elf.x = 1
self.y = 2
foo = Foo()
s = json.dumps(foo) # raises TypeError with "is not JSON serializable"
s = json.dumps(foo.__dict__) # s set to: {"x":1, "y":2}
The above approach is discussed in this blog posting:
Serializing arbitrary Python objects to JSON using __dict__
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MySQL check if a table exists without throwing an exception
...to.
– Warren Rumak
Oct 20 '11 at 17:05
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show 2 more comments
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Is std::unique_ptr required to know the full definition of T?
...ntly, when it is necessary to have a complete type, you get a compile-time error if you try to use the smart pointer with an incomplete type at that point.
No more undefined behavior:
If your code compiles, then you've used a complete type everywhere you need to.
class A
{
class impl;
std...