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Use cases for the 'setdefault' dict method
...t: {1: 5, 2: 6}
In: d.setdefault(2, 0)
Out: 6
In: d.setdefault(2, print('test'))
test
Out: 6
As you can see, print was also executed even though 2 already existed in the dictionary. This becomes particularly important if you are planning to use setdefault for example for an optimization like mem...
Select first row in each GROUP BY group?
...Example.
If total can be NULL, you most probably want the row with the greatest non-null value. Add NULLS LAST like demonstrated. See:
Sort by column ASC, but NULL values first?
The SELECT list is not constrained by expressions in DISTINCT ON or ORDER BY in any way. (Not needed in the simple case ...
Auto-fit TextView for Android
... happy Auto Scale TextView Text to Fit within Bounds
I have modified your test case:
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ViewGroup container = (ViewGroup) findViewById(R.i...
Check if an array contains any element of another array in JavaScript
...t;= 0)
How it works
some(..) checks each element of the array against a test function and returns true if any element of the array passes the test function, otherwise, it returns false. indexOf(..) >= 0 and includes(..) both return true if the given argument is present in the array.
...
Python argparse mutual exclusive group
...')
parser_b.add_argument('-c', type=str, action='store', default='', help='test')
Test it
>>> parser.print_help()
usage: PROG [-h] [--foo] {command_1,command_2} ...
positional arguments:
{command_1,command_2}
help for subcommand
command_1 command_...
How to check whether a script is running under Node.js?
...p;
(process.release.name.search(/node|io.js/) !== -1)
This statement was tested with Node 5.5.0, Electron 0.36.9 (with Node 5.1.1) and Chrome 48.0.2564.116.
Identify Node (>= 0.10.0) or io.js
(typeof process !== 'undefined') &&
(typeof process.versions.node !== 'undefined')
@daluege...
Chrome Extension how to send data from content script to popup.html
...essary permissions, making superflous calls to API methods etc).
I did not test your code myself, but from a quick overview I believe that correcting the following could result in a working solution (although not very close to optimal):
In manifest.json: Change the order of the content scripts, pu...
How do I test for an empty JavaScript object?
...
Here is performance test between jQuery and underscore jsperf.com/isempty-vs-isemptyobject/6
– Mikhail
Feb 9 '16 at 11:21
24
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Get path of executable
...as added to Boost in version 1.61.0.
The following is my solution. I have tested it on Windows, Mac OS X, Solaris, Free BSD, and GNU/Linux.
It requires Boost 1.55.0 or greater. It uses the Boost.Filesystem library directly and the Boost.Locale library and Boost.System library indirectly.
src/exec...
How to delete a file from SD card?
...thesized permissions."
However nasty workaround exists (see code below). Tested on Samsung Galaxy S4, but this fix does't work on all devices. Also I wouldn’t count on this workaround being available in future versions of Android.
There is a great article explaining (4.4+) external storage perm...