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Does const mean thread-safe in C++11?
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class rect {
int width = 0, height = 0;
public:
/*...*/
void set_size( int new_width, int new_height ) {
width = new_width;
height = new_height;
}
int area() const {
return width * height;
}
};
The member-function area is thread-safe; not because it...
How can I create a copy of an object in Python?
...rmost container.
list.copy is a shallow copy:
>>> list_of_dict_of_set = [{'foo': set('abc')}]
>>> lodos_copy = list_of_dict_of_set.copy()
>>> lodos_copy[0]['foo'].pop()
'c'
>>> lodos_copy
[{'foo': {'b', 'a'}}]
>>> list_of_dict_of_set
[{'foo': {'b', 'a'}}]...
Git file permissions on Windows
...e sure the shell scripts I commit from Windows (where I have core.filemode set to false) actually have the execute bit set.
– tomlogic
Oct 24 '13 at 22:00
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Is there a JavaScript / jQuery DOM change listener?
...webpage script), I need a way simply observe changes in DOM state. I could set up polling but that seems sloppy.
5 Answers
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How to replace a set of tokens in a Java String?
... another is that it doesnt work dynamically, being able to have a dataset of keys/values and then apply it to any string
– Brad Parks
Oct 28 '19 at 18:25
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How can I copy data from one column to another in the same table?
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How about this
UPDATE table SET columnB = columnA;
This will update every row.
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HorizontalAlignment=Stretch, MaxWidth, and Left aligned at the same time?
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You can set HorizontalAlignment to Left, set your MaxWidth and then bind Width to the ActualWidth of the parent element:
<Page
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsof...
Django, creating a custom 500/404 error page
...py add your own custom implementation of the following two views, and just set up the templates 404.html and 500.html with what you want to display.
With this solution, no custom code needs to be added to urls.py
Here's the code:
from django.shortcuts import render_to_response
from django.templat...
ManyRelatedManager object is not iterable
...e) like so (note, you use the through table name, in lowercase, suffixing _set):
{% for roominfo in participant.roomchoicethru_set.all %}
{{ roominfo.room}} {{ roominfo.telnumber}}
{% endfor %}
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How to add a button to UINavigationBar?
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Sample code to set the rightbutton on a NavigationBar.
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] initWithTitle:@"Done"
style:UIBarButtonItemStyleDone target:nil action:nil];
UINavigationItem *item = [[UINavigationItem al...