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Postgresql - unable to drop database because of some auto connections to DB
...stgresql restart
Then try dropping the database:
postgres=# drop database test_database;
This will do the trick.
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How to manually expand a special variable (ex: ~ tilde) in bash
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export test="~root/a b"; echo ${~test}
– Gyscos
Jul 15 '15 at 17:49
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Rollback to an old Git commit in a public repo
...this worked, then use 'git pull' to fast forward back to head after you've tested regressions,etc.
– Peter Quiring
Mar 16 '18 at 14:22
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sho...
Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)
...ems(Media) with text. The given code works fine on a few devices that i've tested on. ps : you can ignore the NOKIA part.
– Manan Sharma
Feb 14 '13 at 13:28
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Simplest way to check if key exists in object using CoffeeScript
... referring to keys, and in when referring to array values: val in arr will test whether val is in arr.)
thejh's answer is correct if you want to ignore the object's prototype. Jimmy's answer is correct if you want to ignore keys with a null or undefined value.
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Can someone explain __all__ in Python?
...re constantly tweaking your API.
Maybe you do have users, but you have unittests that cover the API, and you're still actively adding to the API and tweaking in development.
An export decorator
The downside of using __all__ is that you have to write the names of functions and classes being export...
How to select rows from a DataFrame based on column values?
...pd.Series
mask = df['A'].values == 'foo'
I'll show more complete time tests at the end, but just take a look at the performance gains we get using the sample data frame. First, we look at the difference in creating the mask
%timeit mask = df['A'].values == 'foo'
%timeit mask = df['A'] == 'foo...
Overcoming “Display forbidden by X-Frame-Options”
... SAMEORIGIN" header on the source server preventing it from loading on our test server.
This doesn't seem to be documented anywhere, but if you can edit the pages you're trying to iframe (eg., they're your own pages), simply sending another X-Frame-Options header with any string at all disables the...
How to get key names from JSON using jq
curl http://testhost.test.com:8080/application/app/version | jq '.version' | jq '.[]'
7 Answers
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Simple insecure two-way data “obfuscation”?
...gth);
}
return stream.ToArray();
}
}
And bonus unit test
[Test]
public void EncryptDecrypt()
{
// Arrange
var subject = new StringEncryption();
var originalString = "Testing123!£$";
// Act
var encryptedString1 = subject.Encrypt(originalString);
var e...