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How do you downgrade rubygems?
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@BrianArmstrong There is also a bug in 2.3.x which is already fixed in the rails 2-3-stable branch (see link). Perhaps this fix will be available in the next release of 2.2.x.
– pseidemann
Feb 25 '11 at 17:19
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How can I change UIButton title color?
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You can use -[UIButton setTitleColor:forState:] to do this.
Example:
Objective-C
[buttonName setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
Swift 2
buttonName.setTitleColor(UIColor.blackColor(), forState: .Normal)
Swift 3
buttonName.setTitleColor(UIColor.whi...
How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
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assertEquals vs. assertEqual in python
...Equals = failUnlessEqual
In Python 3, to your point, failUnlessEqual is explicitly deprecated. assertEquals carries this comment :-)
# Synonyms for assertion methods
# The plurals are undocumented. Keep them that way to discourage use.
# Do not add more. Do not remove.
# Going...
How to crop an image using PIL?
...nd last 30 rows from the given image. I have searched but did not get the exact solution. Does somebody have some suggestions?
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How to declare Return Types for Functions in TypeScript
...that how I can declare a return type of the function. I showed what I was expecting in the code below : greet(name:string) :string {}
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How do you do a limit query in JPQL or HQL?
... Limit was never a supported clause
in HQL. You are meant to use
setMaxResults().
So if it worked in Hibernate 2, it seems that was by coincidence, rather than by design. I think this was because the Hibernate 2 HQL parser would replace the bits of the query that it recognised as HQL, and lea...
Get top n records for each group of grouped results
The following is the simplest possible example, though any solution should be able to scale to however many n top results are needed:
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Using GCC to produce readable assembly?
...ble disassembly.
>objdump --help
[...]
-S, --source Intermix source code with disassembly
-l, --line-numbers Include line numbers and filenames in output
objdump -drwC -Mintel is nice:
-r shows symbol names on relocations (so you'd see puts in the call instruction below)
-R...
Sending Email in Android using JavaMail API without using the default/built-in app
... sample Project:
MailSenderActivity.java:
public class MailSenderActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final Button send = (Button) this....