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Hidden Features of JavaScript? [closed]
...xample IE fallback in event handlers:
function onClick(e) {
e || (e = window.event);
}
The following language features have been with us for a long time, all JavaScript implementations support them, but they weren't part of the specification until ECMAScript 5th Edition:
The debugger state...
How to change context root of a dynamic web project in Eclipse?
...erties, choose Web Project Settings.
Change Context root to app.
Choose Window > Show View > Servers.
Stop the server by either clicking the red square box ("Stop the server" tooltip) or context-click on the server listing to choose "Stop".
On the server you want to use, context-click to ...
What does .SD stand for in data.table in R
... .SDcols to batch-convert groups of such columns.
We notice that the following columns are stored as character in the Teams data set:
# see ?Teams for explanation; these are various IDs
# used to identify the multitude of teams from
# across the long history of baseball
fkt = c('teamIDBR', 'te...
Use JNI instead of JNA to call native code?
... (including much nicer model for Pointers)
Full JNAerator support
works on Windows, Linux, MacOS X, Solaris, Android
As for memory copying, I believe JNA supports direct ByteBuffers, so memory copying can be avoided.
So, I still believe that wherever possible, it is better to use JNA or ...
json_encode is returning NULL?
For some reason the item "description" returns NULL with the following code:
10 Answers
...
Flask SQLAlchemy query, specify column names
... The second one both sounds more logical and is shorter — win/win
– fgblomqvist
Jan 24 '18 at 19:06
7
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Which cryptographic hash function should I choose?
...d be used after 2010.
SHA2 is a new family of hash functions created following SHA1. Currently there are no known attacks against SHA2 functions. SHA256, 384 and 512 are all part of the SHA2 family, just using different key lengths.
RIPEMD I can't comment too much on, except to note that it isn't...
Conditional import of modules in Python
...ant to import simplejson or json based on whether the OS the user is on is Windows or Linux. I take the OS name as input from the user. Now, is it correct to do the following?
...
How do I create/edit a Manifest file?
...s, it is available under
Project Properties -> Application -> View Windows Settings (button)
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How do I get a value of datetime.today() in Python that is “timezone aware”?
...ay to create aware timezones without creating your own timezone class.
On Windows, there's win32timezone.utcnow(), but that's part of pywin32. I would rather suggest to use the pytz library, which has a constantly updated database of most timezones.
Working with local timezones can be very tricky ...