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In javascript, is an empty string always false as a boolean?
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@Bruno, You can perform the same test with NaN and undefined. They are not false but they are falsy. Which is what was asked.
– Joseph
Feb 25 '16 at 23:52
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How can I tell IntelliJ's “Find in Files” to ignore generated files?
...of getting the same result without needing to configure a custom scope.
I tested this in IntelliJ Ultimate 14.1.4. I have no idea how it behaves in other versions, but I suspect most of v14 at least will behave the same.
sh...
Does Python have “private” variables in classes?
...ariation of private variables in the underscore convention.
In [5]: class Test(object):
...: def __private_method(self):
...: return "Boo"
...: def public_method(self):
...: return self.__private_method()
...:
In [6]: x = Test()
In [7]: x.public_method(...
How to unset a JavaScript variable?
... window property and its value will be 10 at the end of the code:
function test() { a = 5; var a = 10; }
The above discussion is when "strict mode" is not enabled. Lookup rules are a bit different when using "strict mode" and lexical references that would have resolved to window properties without...
RegEx to exclude a specific string constant [duplicate]
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(?!^ABC$)(^.*$)
If this does not work in your editor, try this. It is tested to work in ruby and javascript:
^((?!ABC).)*$
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What tools to automatically inline CSS style to create email HTML code? [closed]
...ct.ca is great, but it chokes on a lot of pages. It's more than half in my testing. For example, try this page.
– Nick Woodhams
Dec 27 '12 at 0:17
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How to specify HTTP error code?
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+1 for using the latest version of the API. If you want to send more down the wire, just chain: res.status(400).json({ error: 'message' })
– TyMayn
Sep 23 '14 at 4:15
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Print string and variable contents on the same line in R
... get null on the end if you put the cat inside of a print like: print(cat("test", var)) which should be cat("test", var)
– Spidfire
Jun 16 '16 at 14:36
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What is a race condition?
... See jakob.engbloms.se/archives/65 for an example of a program to test how oiften such things go bad... it really depends on the memory model of the machine you are running on.
– jakobengblom2
Oct 12 '08 at 19:54
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What is the Python 3 equivalent of “python -m SimpleHTTPServer”
... utils, 2to3 accepts stdin if the argument passed is -. Therefore, you can test without creating any files like so:
$ 2to3 - <<< "import SimpleHTTPServer"
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