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C: What is the difference between ++i and i++?
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jonnyflash, both will operate identically, since the increment of i and the print are in different statements. This should be the case for any language that supports C-style ++. The only difference between ++i and i++ will be when using the value of the operat...
How do I determine scrollHeight?
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What about browser support? All major versions of browsers support it? IE8+?
– SexyBeast
Jan 21 '14 at 15:39
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Django - Difference between import django.conf.settings and import settings
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Also note that all settings names should be upper-case. That is, if your have a var my_var in your settings then this will fail: from django.conf import settings... settings.my_var. But if you name it MY_VAR it will succeed!
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Swift - Cast Int into enum:Int
... started this week) and I'm migrating my app from Objective-C. I have basically the following code in Objective-C that works fine:
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Impossible to make a cached thread pool with a size limit?
...icks in.
In the first example, note that the SynchronousQueue has essentially size of 0. Therefore, the moment you reach the max size (3), the rejection policy kicks in (#4).
In the second example, the queue of choice is a LinkedBlockingQueue which has an unlimited size. Therefore, you get stuc...
LoaderManager with multiple loaders: how to get the right cursorloader
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The Loader class has a method called getId(). I would hope this returns the id you've associated with the loader.
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Is there a way to suppress JSHint warning for one given line?
... Sublime Text 2/3 plugins to work, you will need to upgrade jshint specifically in the ST package folder. (I specifically ran in to this with JSHint Gutter)
– Josh
Nov 15 '13 at 16:19
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brew install gcc too time consuming
I'm doing a clean install of Mavericks, and accidentally did
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Can you use an alias in the WHERE clause in mysql?
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WHERE (sum(reviews.rev_rating)/count(reviews.rev_id))>5
BUT! Not all expressions will be allowed - using an aggregating function like SUM will not work, in which case you'll need to use a HAVING clause.
From the MySQL Manual:
It is not allowable to refer to a
column alias in a WHERE...
Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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@Jasen That's totally clear. Just wanted to emphasize that the answer "But if you have non-unique entries on your table. Here is the how to add unique constraint on your table." will not work. Non-unique entries must of course always be conso...