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How can I check for “undefined” in JavaScript? [duplicate]
...he existence of a property, regardless of its value, while the question at least appears to be asking how to test if the value of a variable is undefined. Perhaps a better example for me to choose would have been var foo; "foo" in window; this returns true while foo is definitely undefined.
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Recompile Heroku slug without push or config change
...ne's mentioned such a command, so I'm presuming your answer is spot on, at least for now. Thanks!
– Nathan
Mar 21 '12 at 2:50
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How to suppress Update Links warning?
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I've found a temporary solution that will at least let me process this job. I wrote a short AutoIt script that waits for the "Update Links" window to appear, then clicks the "Don't Update" button. Code is as follows:
while 1
if winexists("Microsoft Excel","This workb...
How to use pull to refresh in Swift?
...r the accepted answer for the reason that there is then no layout bugs (at least for me using swift 2+)
– Ryan Walton
Jul 23 '16 at 20:05
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Python: Ignore 'Incorrect padding' error when base64 decoding
... are many other answers on this question, but I want to point out that (at least in Python 3.x) base64.b64decode will truncate any extra padding, provided there is enough in the first place.
So, something like: b'abc=' works just as well as b'abc==' (as does b'abc=====').
What this means is that y...
Code Golf: Collatz Conjecture
... After doing my Miranda post (which is basically just older Haskell), at least in Miranda you can cut that down by using just one exclamation mark each - f n=n:[[],[f(n div 2),f(3*n+1)]!(n mod 2)]!(1 mod n) - Works :)
– Derek H
Mar 5 '10 at 20:25
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Find the most common element in a list
...n this question, and it is a good solution for the problem for people with least restrictive requirements. This is one of the top results for "most common item in list python"
– Luiz Berti
Apr 7 '16 at 17:15
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Is a memory leak created if a MemoryStream in .NET is not closed?
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You won't leak anything - at least in the current implementation.
Calling Dispose won't clean up the memory used by MemoryStream any faster. It will stop your stream from being viable for Read/Write calls after the call, which may or may not be useful t...
View's getWidth() and getHeight() returns 0
...ouNeedHeightFrom.getHeight();
}
Returns true if view has been through at least one layout since it was
last attached to or detached from a window.
Additional: Getting staticly defined measurements
If it suffices to just get the statically defined height/width, you can just do this with:
View.get...
A definitive guide to API-breaking changes in .NET
...use a newer version of the Foo DLL. It breaks with a strange error, or at least it did for me in libraries I have developed before.
– Jeremy
Jun 7 '16 at 20:39
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