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Which C++ idioms are deprecated in C++11?
... I think typename result_of<F(Args...)::type can sometimes be easier to read than decltype(std::declval<F>()(std::declval<Args>()...), and with the acceptance of N3436 into the working paper they both work for SFINAE (which used to be an advantage of decltype that result_of didn't off...
Unzipping files in Python
I read through the zipfile documentation , but couldn't understand how to unzip a file, only how to zip a file. How do I unzip all the contents of a zip file into the same directory?
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python requests file upload
...he filename. Then after the open is executed, multiple records appear with read access. After executing the requests.post, the records are still there indicating that the file did not close.
– Demetris
Oct 11 '19 at 7:06
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Ways to save enums in database
..." +
"VALUES ('Ian Boyd', %s)".format(theSuit.name());
and then read back with:
Suit theSuit = Suit.valueOf(reader["Suit"]);
The problem was in the past staring at Enterprise Manager and trying to decipher:
Name Suit
================== ==========
Shelby Jackson 2
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HTML: Include, or exclude, optional closing tags?
...al tags (unless I have a very good reason not to) because it lends to more readable and updateable code.
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Using varchar(MAX) vs TEXT on SQL Server
I just read that the VARCHAR(MAX) datatype (which can store close to 2GB of char data) is the recommended replacement for the TEXT datatype in SQL Server 2005 and Next SQL SERVER versions.
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Android 4.3 Bluetooth Low Energy unstable
...on't forget to call android.bluetooth.BluetoothGatt#close()
Start a new thread inside onLeScan(..) and then connect. Reason: BluetoothDevice#connectGatt(Context context, boolean autoConnect, BluetoothGattCallback callback) always fails, if called inside LeScanCallback() {...}.onLeScan(BluetoothDevi...
PHP - Debugging Curl
...mp', 'w+');
curl_setopt($handle, CURLOPT_STDERR, $verbose);
You can then read it after curl has done the request:
$result = curl_exec($handle);
if ($result === FALSE) {
printf("cUrl error (#%d): %s<br>\n", curl_errno($handle),
htmlspecialchars(curl_error($handle)));
}
rewind...
Rails: How to change the text on the submit button in a Rails Form
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It's worth reading the other answers that show how to make changes using a file such as config/locales/en.yml
– cwd
Jun 16 '18 at 11:48
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One DbContext per web request… why?
I have been reading a lot of articles explaining how to set up Entity Framework's DbContext so that only one is created and used per HTTP web request using various DI frameworks.
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