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NULL values inside NOT IN clause
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@Ian - It looks like "A NOT IN ( 'X', 'Y' )" actually is an alias for A <> 'X' AND A <> 'Y' in SQL. (I see that you discovered this yourself in stackoverflow.com/questions/3924694/…, but wanted to make sure your objection was addressed in this question.)
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Is a Java string really immutable?
We all know that String is immutable in Java, but check the following code:
15 Answers
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How do you change text to bold in Android?
...droid:textStyle
Examples:
android:textStyle="bold|italic"
Programmatically the method is:
setTypeface(Typeface tf)
Sets the typeface and style in which the text should be displayed. Note that not all Typeface families actually have bold and italic variants, so you may need to use setTypeface...
What does the question mark operator mean in Ruby?
... Ajedi32 - Yeah I agree it's nice to name functions like that, I use is all the time. This might be super confusing for someone coming from Swift since the question mark there is used for nullable : )
– Jason
Dec 29 '15 at 19:51
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How do I fix "The expression of type List needs unchecked conversion…'?
...);
for(Object o: c)
r.add(clazz.cast(o));
return r;
}
This allows you to do:
List<SyndEntry> entries = castList(SyndEntry.class, sf.getEntries());
Because this solution checks that the elements indeed have the correct element type by means of a cast, it is safe, and does not...
Get first day of week in PHP?
...HP version used: 3v4l.org/Z3k4E @LewisBuckley's solution is consistent for all versions: 3v4l.org/Eeh9c
– Chris Baker
Jun 25 '14 at 14:45
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CodeIgniter - accessing $config variable in view
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Your controller should collect all the information from databases, configs, etc. There are many good reasons to stick to this. One good reason is that this will allow you to change the source of that information quite easily and not have to make any change...
Best way to add comments in erb
... you can embed every ruby code between: <%= and the other: %>, typically all written in one line. In addition, ruby one-line comments start always with #, so the <%=# Comment %> style matches perfectly with both pure-ruby and erb styles for one-line comments.
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Detect IE version (prior to v9) in JavaScript
...9. It's just not worth our time and money to support IE pre-v9 . Users of all other non-IE browsers are fine and shouldn't be bounced. Here's the proposed code:
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optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
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Though I really like the compact syntax of hgimenez's suggestion (above), this approach has the advantage of being very clear re: what's going on. (Still has the downside of not letting you pass nil as a value for the local)
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