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what’s the difference between Expires and Cache-Control headers?
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Cache-Control was introduced in HTTP/1.1 and offers more options than Expires. They can be used to accomplish the same thing but the data value for Expires is an HTTP date whereas Cache-Control max-age lets you specify a relative amount of time so you could specify "X hours after the...
How can I check if a background image is loaded?
...'<img/>').attr('src', 'http://picture.de/image.png').on('load', function() {
$(this).remove(); // prevent memory leaks as @benweet suggested
$('body').css('background-image', 'url(http://picture.de/image.png)');
});
this will create new image in memory and use load event to detect when...
Changing the current working directory in Java?
...m.setProperty() or java -Duser.dir=... does seem to affect subsequent creations of Files, but not e.g. FileOutputStreams.
The File(String parent, String child) constructor can help if you build up your directory path separately from your file path, allowing easier swapping.
An alternative is to se...
AndroidRuntime error: Parcel: unable to marshal value
...m trying to pass a HashMap to a new activity using the intent.puExtra function. Stepping through the debugger it seems that it adds the HashMap no problem, however when startActivty() is called I get a runtime error stating that Parcel: unable to marshal value com.appName.Liquor.
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How can I trigger a Bootstrap modal programmatically?
...e modal pop up you have to do this
$('#myModal').modal('show');
You previously need to initialize it with show: false so it won't show until you manually do it.
$('#myModal').modal({ show: false})
Where myModal is the id of the modal container.
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Saving a Numpy array as an image
... @TomášGavenčiak - scipy.misc.imsave is now deprecated in the newer versions of Scipy. An alternative a few comments below is to use imageio.imwrite('image_file.jpg', array)
– Psi-Ed
May 3 at 6:17
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SFTP in Python? (platform independent)
I'm working on a simple tool that transfers files to a hard-coded location with the password also hard-coded. I'm a python novice, but thanks to ftplib, it was easy:
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Amazon S3 boto - how to create a folder?
...-value store. Some tools (including the AWS web console) provide some functionality that mimics a directory tree, but you'll be working against S3 rather than working with it if your applications assume it's equivalent to a file system. Renaming what appears to be a directory, for instance, requires...
Create a table without a header in Markdown
...rkdown parsers don't support tables without headers. That means the separation line for headers is mandatory.
Parsers that do not support tables without headers
multimarkdown
Maruku: A popular implementation in Ruby
byword: "All tables must begin with one or more rows of headers"
PHP Markdown Ext...
Install gitk on Mac
... (Apple Git-37) does not come with gitk. You can install a more recent version of git + git-ui as a separate formula by using brew. More thorough instructions located here: http://www.moncefbelyamani.com/how-to-install-xcode-homebrew-git-rvm-ruby-on-mac/ (see this commit extracting git-gui/gitk ...