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Argparse optional positional arguments?
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859
Use nargs='?' (or nargs='*' if you will need more than one dir)
parser.add_argument('dir', n...
What's best SQL datatype for storing JSON string?
...ns come in two flavors: either you define a maximum length that results in 8000 bytes or less (VARCHAR up to 8000 characters, NVARCHAR up to 4000), or if that's not enough, use the (N)VARCHAR(MAX) versions, which store up to 2 GByte of data.
Update: SQL Server 2016 will have native JSON support - a...
Purpose of “consider_all_requests_local” in config/environments/development.rb?
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answered Dec 16 '08 at 23:21
Gordon WilsonGordon Wilson
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Unique constraint that allows empty values in MySQL
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183
Yes, you can do this. See the MySQL reference (version 5.5).
A UNIQUE index creates a const...
What do we mean by Byte array? [closed]
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A byte is 8 bits (binary data).
A byte array is an array of bytes (tautology FTW!).
You could use a byte array to store a collection of binary data, for example, the contents of a file. The downside to this is that the entire file co...
How can I check that a form field is prefilled correctly using capybara?
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edited Oct 28 '16 at 14:53
Малъ Скрылевъ
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PHP function to make slug (URL string)
...lace('~[^\pL\d]+~u', '-', $text);
// transliterate
$text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
// remove unwanted characters
$text = preg_replace('~[^-\w]+~', '', $text);
// trim
$text = trim($text, '-');
// remove duplicate -
$text = preg_replace('~-+~', '-', $text);
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Best practice for creating millions of small temporary objects
...re would be two types of sweeps, a fast and a full sweep.
[GC 325407K->83000K(776768K), 0.2300771 secs]
[GC 325816K->83372K(776768K), 0.2454258 secs]
[Full GC 267628K->83769K(776768K), 1.8479984 secs]
The arrow is before and after size.
As long as it is just doing GC and not a full GC y...
is not JSON serializable
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answered May 28 '13 at 11:04
alecxealecxe
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Is there a shortcut to make a block comment in Xcode?
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edited May 11 '15 at 18:45
Anoop Vaidya
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