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Checking if an object is null in C#
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@glosrob: Ah!! What an oversight! I was thinking that the NullReferenceException was from the object.. not the list! I'm new to c# and I figured there was a special way of checking for null in c#!
– developer
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COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
... don't use COUNT(1) for anything. It's a one-trick pony, which rarely does what you want, and in those rare cases is equivalent to count(*)
Use count(*) for counting
Use * for all your queries that need to count everything, even for joins, use *
SELECT boss.boss_id, COUNT(subordinate.*)
FROM boss...
How to organize a node app that uses sequelize?
...aster/models/index.js - you can browse the whole project to get an idea of what's going on).
p.s.
I'm editing this post as it's so upvoted that people won't even see any new answers (as I did).
Edit: Just changed the link to a copy of the same post, but in a Github Page
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How to get the last N records in mongodb?
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What ever it is, the order of calling functions should have nothing to do with the end result.
– Morteza Milani
Mar 9 '12 at 9:21
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Stop setInterval call in JavaScript
... SetInterval() does not change the speed that you pass it. If whatever it is doing speeds up each time that you call SetInterval(), then you have multiple timers which are running at the same time, and should open a new question.
– EpicVoyage
Apr 1...
How do you show animated GIFs on a Windows Form (c#)
... your business logic fires an event when something is partially done, then whatever properties (for instance progress bar or percentage) can be updated and animation can be updated with Application.DoEvents()
– Do-do-new
Sep 4 '17 at 9:02
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MySQL Insert into multiple tables? (Database normalization?)
...() which does that for you
INSERT [use your php variable here]
WARNING
Whatever way of solving this you choose, you must decide what should happen should the execution be interrupted between queries (for example, your database-server crashes). If you can live with "some have finished, others not...
convert ArrayList to JSONArray
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That got me close, but what happened was that the toString() output from each object was inserted into the JSONArray as a String. I still ended up with an JSONArray of Strings and not Objects. I ended up creating a method on my class called getJS...
When should I mock?
... if not impossible, to reliably get the dependent object to return exactly what you want during a test. That also includes throwing expected exceptions within tests.
A mock replaces that dependency. You set expectations on calls to the dependent object, set the exact return values it should give ...
Python, remove all non-alphabet chars from string
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Hmm, I can quite track it down, but what about the pattern to remove all non-alphanumerics excluding spaces?
– KDecker
Mar 20 '14 at 0:45
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