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How do you test that a Python function throws an exception?
...n' in context.exception)
if __name__ == '__main__':
unittest.main()
http://docs.python.org/dev/library/unittest.html#unittest.TestCase.assertRaises
In Python 3.5, you have to wrap context.exception in str, otherwise you'll get a TypeError
self.assertTrue('This is broken' in str(context.ex...
Download a file from NodeJS Server using Express
...name is just 'download', so you need to give it more info by using another HTTP header.
res.setHeader('Content-disposition', 'attachment; filename=dramaticpenguin.MOV');
You may also want to send a mime-type such as this:
res.setHeader('Content-type', 'video/quicktime');
If you want something ...
Understanding colors on Android (six characters)
...o 55.
Enter your decimal value in a decimal-to-hexadecimal converter, like http://www.binaryhexconverter.com/decimal-to-hex-converter, and convert your values.
If you only get back a single value, prefix it with a zero. For example, if you're trying to get 5% opacity and you're going through this pr...
What is the best way to conditionally apply a class?
... "active"},
{"name": "Item 2", "isSelected": ""}
]
}
See: http://jsfiddle.net/tTfWM/
See: http://docs.angularjs.org/api/ng.directive:ngClass
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Why doesn't CSS ellipsis work in table cell?
... table-layout: fixed; for the table, and also set it's width. For example: http://jsfiddle.net/fd3Zx/5/
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Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
... lines of the form dyno_type: command_to_run, so for example (cribbed from http://devcenter.heroku.com/articles/process-model):
web: bundle exec rails server
worker: bundle exec rake jobs:work
This, with a:
heroku scale web:2 worker:10
will result in you having 2 web dynos and 10 worker dyn...
What is the difference between parseInt() and Number()?
...str,10)
parseFloat(str)
str << 0
+str
str*1
str-0
Number(str)
http://jsben.ch/#/zGJHM
http://phrogz.net/js/string_to_number.html
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Javascript callback when IFRAME is finished loading?
...some example code the illustrates what I'm talking about:
<script src="http://prototypejs.org/assets/2009/8/31/prototype.js" type="text/javascript"></script>
<h1>Parent</h1>
<script type="text/javascript">
function on_load(iframe) {
try {
// Displays the first ...
What predefined macro can I use to detect clang?
...e code. I can easily find predefined macros to check for MSVC or GCC (see http://predef.sourceforge.net/ for example), but I cannot find any macro to check for clang.
...
Is it safe to assume strict comparison in a JavaScript switch statement?
...
http://qfox.nl/notes/110 answers your question. (This guy knows a lot about the nitty gritty of JavaScript)
Switches in Javascript use strict type checking (===). So you never
have to worry about coercion, which prevent...