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Remove columns from DataTable in C#
...ly say "I need the first 10 columns". As such the solution must contain an array of column names that he wants, then we can eliminate all others not falling into this "defined" set of names. Different ways to implement this; from simple foreach loop to query or linq using IN.
–...
How to store a dataframe using Pandas
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@user1700890 try to generate from random data (text and arrays) and post a new question. I don't think this can be right/suspect we're missing something. New question will get more eyes, but try to include/generate a DataFrame that reproduces :)
– Andy Hayden...
How to convert PascalCase to pascal_case?
...
Try this on for size:
$tests = array(
'simpleTest' => 'simple_test',
'easy' => 'easy',
'HTML' => 'html',
'simpleXML' => 'simple_xml',
'PDFLoad' => 'pdf_load',
'startMIDDLELast' => 'start_middle_last',
'AString' => 'a_stri...
Cron jobs and random times, within given hours
... uses bash's $RANDOM that other people have mentioned above, but adds bash array slicing. Since bash variables are untyped, the pseudo-random signed 16-bit number gets truncated to the first 2 of its 5 decimal digits, giving you a succinct one-liner for delaying your cronjob between 10 and 99 minute...
Using C# reflection to call a constructor
... the C# code and then make sure you know the VB syntax for constructing an array. Without wishing to be mean, if that's too much of a challenge then you should really really stay away from reflection.
– Jon Skeet
Mar 7 '13 at 6:48
...
Is there a printf converter to print in binary format?
... to know how to properly use the standard library. Maybe using an indexed array for assignment would have been a good demonstration (and will actually work, since b isn't reset to all-zeros each time you call the function).
– tomlogic
Aug 10 '10 at 17:24
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Incrementing a date in JavaScript
...bjects are mutable. You're storing the same Date object three times in the array. If you want three different Date objects, you have to create three objects: var unavailableDates = []; for (var d = new Date('2017-05-11'); d < new Date('2017-05-13'); d.setDate(d.getDate() + 1)) { unavailableDates....
Can Json.NET serialize / deserialize to / from a stream?
... var ser = new JsonSerializer();
writer.WriteStartArray();
for(int i = 0; i < 25; i++) {
ser.Serialize(writer, new DataItem { Item = i });
writer.Flush();
Thread.Sl...
No route matches “/users/sign_out” devise rails 3
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It is also possible to use an array if you wish to support multiple methods. For example: config.sign_out_via = [ :post, :delete ] or devise_for :users, :sign_out_via => [ :post, :delete ], as described in devise/rails/routes.rb.
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What's the best practice for putting multiple projects in a git repository? [closed]
...ork on one project.
git branch software EMPTY
git checkout software
echo "array board[8,8] of piece" > chess.prog
git add chess.prog
git commit -m "chess program"
Start another project
whenever you like.
git branch thesis EMPTY
git checkout thesis
echo "the meaning of meaning" > philoso...