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How to convert an Int to a String of a given length with leading zeros to align?
...alohaaaaaa". Note the element type of a String is a Char, hence the single quotes around the 'a'.
Your problem is a bit different since you need to prepend characters instead of appending them. That's why you need to reverse the string, append the fill-up characters (you would be prepending them no...
Parse a URI String into Name-Value Collection
... are forgetting to decode the names and parameters, one reason why it's usually better to let libraries do common tasks.
– Juan Mendes
Nov 27 '12 at 20:52
10
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How do I write a bash script to restart a process if it dies?
...crashing on your hands. The sleep 1 takes away the strain from that.
Now all you need to do is start this bash script (asynchronously, probably), and it will monitor myserver and restart it as necessary. If you want to start the monitor on boot (making the server "survive" reboots), you can sched...
Django migration strategy for renaming a model and relationship fields
...n files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So try manage.py makemigrations first and then check the migration file.
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DateTime2 vs DateTime in SQL Server
...e seconds precision.
datetimeoffset provides time zone
support for globally deployed
applications.
datetime2 has larger date range, a larger default fractional precision, and optional user-specified precision. Also depending on the user-specified precision it may use less storage.
...
How to inspect Javascript Objects
... I cannot use console because I'm using styling stackoverflow.com/q/7505623/1480391 and it's not compatible
– Yves M.
May 15 '18 at 8:33
add a comment
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Angularjs loading screen on ajax request
... });
}
};
}]);
With this directive, all you need to do is to give any loading animation element an 'loading' attribute:
<div class="loading-spiner-holder" data-loading ><div class="loading-spiner"><img src="..." /></div></div>
Y...
SQLite UPSERT / UPDATE OR INSERT
...answer. Starting from SQLIte 3.24.0, released on June 4, 2018, there is finally a support for UPSERT clause following PostgreSQL syntax.
INSERT INTO players (user_name, age)
VALUES('steven', 32)
ON CONFLICT(user_name)
DO UPDATE SET age=excluded.age;
Note: For those having to use a vers...
Is it possible to make abstract classes in Python?
...nitions of those methods:
>>> Abstract()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: Can't instantiate abstract class Abstract with abstract methods foo
>>> class StillAbstract(Abstract):
... pass
...
>>> StillAbstr...
Django - limiting query results
...s are lazy. That means a query will hit the database only when you specifically ask for the result.
So until you print or actually use the result of a query you can filter further with no database access.
As you can see below your code only executes one sql query to fetch only the last 10 items.
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