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Install a module using pip for specific python version
On Ubuntu 10.04 by default Python 2.6 is installed, then I have installed Python 2.7. How can I use pip install to install packages for Python 2.7.
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Add a default value to a column through a migration
... What do you mean when you say "make sure you update the field manually on the migration"? How does one do that?
– David Argyle Thacker
Jan 8 '16 at 21:51
7
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HTML5 Video Dimensions
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<video id="foo" src="foo.mp4"></video>
var vid = document.getElementById("foo");
vid.videoHeight; // returns the intrinsic height of the video
vid.videoWidth; // returns the intrinsic width of the video
Spec: https://html.sp...
In Java, are enum types inside a class static?
...r class they'd break the enum guarantee -
e.g. if you had
public class Foo {
private enum Bar {
A, B, C;
}
}
For the enum values to properly act as constants, (psuedocode, ignoring access restrictions)
Bar b1 = new Foo().A
Bar b2 = new Foo().A
b1 and b2 would have to be the s...
Detect when an image fails to load in Javascript
...eNotFound() {
alert('That image was not found.');
}
testImage("http://foo.com/bar.jpg");
And my sympathies for the jQuery-resistant boss!
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Inputting a default image in case the src attribute of an html is not valid?
...body>
</html>
Since the first image doesn't exist, the fallback (the sprites used on this web site*) will display. And if you're using a really old browser that doesn't support object, it will ignore that tag and use the img tag. See caniuse website for compatibility. This element...
How to execute XPath one-liners from shell?
...uld try these tools :
xmlstarlet : can edit, select, transform... Not installed by default, xpath1
xmllint : often installed by default with libxml2-utils, xpath1 (check my wrapper to have --xpath switch on very old releases and newlines delimited output (v < 2.9.9)
xpath : installed via perl's ...
Renaming xcode 4 project and the actual folder
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Rename your source folder in the Finder. This will break the project initially because Xcode doesn't automatically detect when the real folders that the virtual (yellow) project folders point to are changed, so all the files inside that folder will turn red in Xcode. Don't worry about that, we'll f...
Disable mouse scroll wheel zoom on embedded Google Maps
I am working on a WordPress site where the authors usually embed Google Maps using iFrames in most posts.
30 Answers
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Decompressing GZip Stream from HTTPClient Response
...tter ways please let me know :-)
public DataSet getData(string strFoo)
{
string url = "foo";
HttpClient client = new HttpClient();
HttpResponseMessage response;
DataSet dsTable = new DataSet();
try
{
//Gets the headers t...