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variable === undefined vs. typeof variable === “undefined”
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For undeclared variables, typeof foo will return the string literal "undefined", whereas the identity check foo === undefined would trigger the error "foo is not defined".
For local variables (which you know are declared somewhere), no such error would occur, hence the identity check....
Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
Because of the Twitter API 1.0 retirement as of June 11th 2013 , the script below does not work anymore.
14 Answers
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How to round a number to significant figures in Python
...gt;> round(1234, -3)
1000.0
Thus if you need only most significant digit:
>>> from math import log10, floor
>>> def round_to_1(x):
... return round(x, -int(floor(log10(abs(x)))))
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>>> round_to_1(0.0232)
0.02
>>> round_to_1(1234243)
1000000.0
>>&g...
How to upgrade Git to latest version on macOS?
I just bought a new Mac with OS X Lion and I checked in the Terminal what version of git is installed by default. I got the answer
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How to limit the maximum value of a numeric field in a Django model?
...us numeric fields available for use in models, e.g. DecimalField and PositiveIntegerField . Although the former can be restricted to the number of decimal places stored and the overall number of characters stored, is there any way to restrict it to storing only numbers within a certain range, e...
Eclipse: How do i refresh an entire workspace? F5 doesn't do it
I have a workspace with a bunch of java projects. If I go to File->Refresh , it doesn't really refresh anything (perhaps the currently selected project). How do I get eclipse to refresh all of the projects?
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Allowing Untrusted SSL Certificates with HttpClient
I'm struggling to get my Windows 8 application to communicate with my test web API over SSL.
11 Answers
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The apk must be signed with the same certificates as the previous version
I had uploaded my app to Google Play (back when it was called Android Market) some time ago.
11 Answers
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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
I am getting an ORA-01000 SQL exception. So I have some queries related to it.
13 Answers
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Is it possible to specify condition in Count()?
Is it possible to specify a condition in Count() ? I would like to count only the rows that have, for example, "Manager" in the Position column.
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