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How should I print types like off_t and size_t?
I'm trying to print types like off_t and size_t . What is the correct placeholder for printf() that is portable ?
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How can I sort a dictionary by key?
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Standard Python dictionaries are unordered. Even if you sorted the (key,value) pairs, you wouldn't be able to store them in a dict in a way that would preserve the ordering.
The easiest way is to use OrderedDict, which remembe...
HTML5 Local storage vs. Session storage
Apart from being non persistent and scoped only to the current window, are there any benefits (performance, data access, etc) to Session Storage over Local Storage?
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Try-finally block prevents StackOverflowError
...n from the invocation of foo() inside the try, you call foo() from finally and start recursing again. When that causes another exception, you'll call foo() from another inner finally(), and so on almost ad infinitum.
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How to save and restore multiple different sessions in Vim?
...like
:mksession ~/mysession.vim
Then later you can source that vim file and you'll have your old session back:
:source ~/mysession.vim
or open vim with the -S option:
$ vim -S ~/mysession.vim
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How to get a pixel's x,y coordinate color from an image?
...ur PNG. The following creates an off-screen canvas that is the same width and height as your image and has the image drawn on it.
var img = document.getElementById('my-image');
var canvas = document.createElement('canvas');
canvas.width = img.width;
canvas.height = img.height;
canvas.getContext('2...
scp or sftp copy multiple files with single command
...te server in different directories.
For example, I want to run these 4 commands at once.
15 Answers
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Invalid date format specification in gemspec
I am getting the following error when I try to use gems in windows, and I also referred to
this stackoverflow post and updated rubygems and rails. But nothing could solve the problem.
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How to wait 5 seconds with jQuery?
I'm trying to create an effect where the page loads, and after 5 seconds, the success message on the screen fades out, or slides up.
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How to pass an array within a query string?
Is there a standard way of passing an array through a query string?
10 Answers
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