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How to set size for local image using knitr for markdown?
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By running this under RStudio, you will create a huge margin to the rendered png.
– Paulo E. Cardoso
Sep 29 '14 at 16:13
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Loading cross-domain endpoint with AJAX
...ts with jQuery.ajax
Heads up!
The best way to overcome this problem, is by creating your own proxy in the back-end, so that your proxy will point to the services in other domains, because in the back-end not exists the same origin policy restriction. But if you can't do that in back-end, then pay...
RESTful web service - how to authenticate requests from other services?
I am designing a RESTful web service that needs to be accessed by users, but also other web services and applications. All of the incoming requests need to be authenticated. All communication takes place over HTTPS. User authentication is going to work based on an authentication token, acquired by P...
Android Camera : data intent returns null
...ent and the picture is in the URI that you passed in.
You can verify this by looking at the camera app's source code on GitHub:
https://github.com/android/platform_packages_apps_camera/blob/gingerbread-release/src/com/android/camera/Camera.java#L1186
Bundle newExtras = new Bundle();
if (mCropVal...
“Items collection must be empty before using ItemsSource.”
... can find out which property the content of an element will get applied to by looking for the ContentPropertyAttribute on the class. In this case it's defined higher in the class hierarchy, on the ItemsControl:
[ContentPropertyAttribute("Items")]
The intention here was that the ListView's View b...
Haml: Control whitespace around text
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Nice timing, I just found out about these by reading Haml's source. Apparently they've been around for a while. Odd that they don't document them in the main reference page...
– Groxx
Jun 10 '11 at 23:51
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Should the hash code of null always be zero, in .NET
...equivalent to null, or simply don't use nullable enums.
Interesting find, by the way.
Another problem I see with this generally is that the hash code cannot represent a 4 byte or larger type that is nullable without at least one collision (more as the type size increases). For example, the hash co...
How to split a column into two columns?
...() method.
But for a simple split over a known separator (like, splitting by dashes, or splitting by whitespace), the .str.split() method is enough1. It operates on a column (Series) of strings, and returns a column (Series) of lists:
>>> import pandas as pd
>>> df = pd.DataFrame...
How to turn a String into a JavaScript function call? [duplicate]
...ave a reference to a function inside a variable, we can call this function by "calling the variable", i.e. fn(t.parentNode.id), which equals clickedOnItem(t.parentNode.id), which was what the OP wanted.
More full example:
/* Somewhere: */
window.settings = {
/* [..] Other settings */
functionN...
How to list variables declared in script in bash?
...thing similar to the @GinkgoFr answer, but without the problems identified by @Tino or @DejayClayton,
and is more robust than @DouglasLeeder's clever set -o posix bit:
+ function SOLUTION() { (set +o posix; set) | sed -ne '/^\w\+=/!q; p;'; }
The difference is that this solution STOPS after the f...