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What does the “===” operator do in Ruby? [duplicate]
...=== b
means whatever the author of a's class wants it to mean.
However, if you don't want to confuse the heck out of your colleagues, the convention is that === is the case subsumption operator. Basically, it's a boolean operator which asks the question "If I have a drawer labelled a would it mak...
Python - abs vs fabs
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math.fabs() converts its argument to float if it can (if it can't, it throws an exception). It then takes the absolute value, and returns the result as a float.
In addition to floats, abs() also works with integers and complex numbers. Its return type depends on the t...
how to set desired language in git-gui?
... rather handy (under OSX Snow Leopard) to srtat with but I would much like if it were not localized (in French, in my case). Is there preference or hack to have git gui displayed in english?
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Python AttributeError: 'module' object has no attribute 'Serial' [duplicate]
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In most cases: rename your project file 'serial.py' and delete serial.pyc if exists, then you can do simple 'import serial' without attribute error.
Problem occurs when you import 'something' when your python file name is 'something.py'.
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Event on a disabled input
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Small thing: if you're using the disabled attribute with no value, that implies HTML rather than XHTML, in which case the closing slash is unnecessary.
– Tim Down
Jun 23 '10 at 9:56
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git: diff between file in local repo and origin
I want to find the differences between a file I have in my local repo vs what is in the origin master .
7 Answers
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What __init__ and self do on Python?
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what if you put x = 'Hello' outside init but inside the class? is it like java where it's the same, or does it become like a static variable which is only initialised once?
– Jayen
Apr 9 '12...
How can I apply a border only inside a table?
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If you are doing what I believe you are trying to do, you'll need something a little more like this:
table {
border-collapse: collapse;
}
table td, table th {
border: 1px solid black;
}
table tr:first-child th {
border...
dealloc in Swift
I would like to perform some cleanup at the end of a view controller's life, namely to remove an NSNotificationCenter notification. Implementing dealloc results in a Swift compiler error:
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How to get all selected values from ?
...var i=0, iLen=options.length; i<iLen; i++) {
opt = options[i];
if (opt.selected) {
result.push(opt.value || opt.text);
}
}
return result;
}
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