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What is a smart pointer and when should I use one?
...
A smart pointer is like a regular (typed) pointer, like "char*", except when the pointer itself goes out of scope then what it points to is deleted as well. You can use it like you would a regular pointer, by using "->", but not if you need an actual pointer to the data. For tha...
Google maps API V3 - multiple markers on exact same spot
...t to be written) function to popup an InfoWindow with a list of options to select from. Note that the markerClusterer object is passed to your function, because you will need this to determine how many markers there are in that cluster. For example:
function multiChoice(mc) {
var cluster = mc....
How to build a query string for a URL in C#?
...om key in nvc.AllKeys
from value in nvc.GetValues(key)
select string.Format(
"{0}={1}",
HttpUtility.UrlEncode(key),
HttpUtility.UrlEncode(value))
).ToArray();
return "?" + string.Join("&", array);
}
I imagine there...
How to fix Python indentation
... do this:
$ # see what changes it would make
$ autopep8 path/to/file.py --select=E101,E121 --diff
$ # make these changes
$ autopep8 path/to/file.py --select=E101,E121 --in-place
Note: E101 and E121 are pep8 indentation (I think you can simply pass --select=E1 to fix all indentation related issue...
Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 2
3 import org.eclipse.swt.SWT;
4 import org.eclipse.swt.events.SelectionAdapter;
5 import org.eclipse.swt.events.SelectionEvent;
6 import org.eclipse.swt.widgets.Button;
7 import org.eclipse.swt.widgets.Dialog;
8 import org.eclipse.swt.widgets.Display;
9 import org.ec...
DataTrigger where value is NOT null?
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I'm using this to only enable a button if a listview item is selected (ie not null):
<Style TargetType="{x:Type Button}">
<Setter Property="IsEnabled" Value="True"/>
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=lvMyList, Path=Selecte...
jQuery/JavaScript: accessing contents of an iframe
...e IFrame the same way you'd get any other id-less content with jQuery: you select the appropriate <IFrame> tag with CSS, using class names and attribute values to narrow it down if necessary.
– Auspex
Apr 20 '12 at 19:36
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Are soft deletes a good idea? [duplicate]
... is RIGHT
4) The complexities of soft delete never ever stops at a simple select.
A) Suppose you had a UNIQUE constraint. Now you soft-delete a row but the column with UNIQUE constraint is still there. When you want to add the same data back in, you cannot do that without additional "tricks".
B...
How can I filter lines on load in Pandas read_csv function?
... read_csv. However, read_csv returns a DataFrame, which can be filtered by selecting rows by boolean vector df[bool_vec]:
filtered = df[(df['timestamp'] > targettime)]
This is selecting all rows in df (assuming df is any DataFrame, such as the result of a read_csv call, that at least contains ...
How do I implement onchange of with jQuery?
<select> has this API. What about <input> ?
14 Answers
14
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