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Does Python have a ternary conditional operator?
...'
'false'
Note that conditionals are an expression, not a statement. This means you can't use assignment statements or pass or other statements within a conditional expression:
>>> pass if False else x = 3
File "<stdin>", line 1
pass if False else x = 3
^
SyntaxError:...
How to prevent a background process from being stopped after closing SSH client in Linux
...shell receives a
SIGHUP. The -a option, when JOBSPEC is not supplied, means to remove all
jobs from the job table; the -r option means to remove only running jobs.
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What is thread safe or non-thread safe in PHP?
...PHP must be able to operate within this same multi-threaded environment -- meaning, PHP has to be thread-safe to be able to play ball correctly with Apache!
At this point, you should be thinking "OK, so if I'm using a multi-threaded web server and I'm going to embed PHP right into it, then I must u...
Pandas index column title or name
...2.0
Puppies 3.0
Ducks 4.0
Removing index and columns names means set it to None:
df = df.rename_axis(index=None, columns=None)
print (df)
Column 1
Apples 1.0
Oranges 2.0
Puppies 3.0
Ducks 4.0
If MultiIndex in index only:
mux = pd.MultiIndex.f...
How to iterate over a JSONObject?
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I will avoid iterator as they can add/remove object during iteration, also for clean code use for loop. it will be simply clean & fewer lines.
Using Java 8 and Lamda [Update 4/2/2019]
import org.json.JSONObject;
public static v...
Submitting a form on 'Enter' with jQuery?
...f you want to type first into the input fields, put the "return false;" inside the if statement.
– Juni Brosas
Oct 16 '15 at 14:40
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What's the difference between a mock & stub?
...that Fowler showed as example of a stub is actually example of a spy! That means that a mock is a stub, and a spy is a stub. And a stub is just an object that have several working methods. That also explains why Mockito deprecated stub() method.
– kolobok
Jul 8...
Are static variables shared between threads?
...resented the info:
http://jeremymanson.blogspot.com/2008/11/what-volatile-means-in-java.html
First, you have to understand a little something about the Java memory model. I've struggled a bit over the years to explain it briefly and well. As of today, the best way I can think of to describe it is...
ERROR 2006 (HY000): MySQL server has gone away
...ror:
Error: 2006 (CR_SERVER_GONE_ERROR) - MySQL server has gone away
means that the client couldn't send a question to the server.
mysql import
In your specific case while importing the database file via mysql, this most likely mean that some of the queries in the SQL file are too large to...
Each for object? [duplicate]
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A javascript Object does not have a standard .each function. jQuery provides a function. See http://api.jquery.com/jQuery.each/ The below should work
$.each(object, function(index, value) {
console.log(value);
});
Another option would be to use vanilla Javascript using the Object.keys() a...