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What is a magic number, and why is it bad? [closed]
...vention, it's a number that you made up for reasons outlined in the spec.
Now, what you do is you have the 50 in different places - your SQL script (SELECT TOP 50 * FROM orders), your Website (Your Last 50 Orders), your order login (for (i = 0; i < 50; i++)) and possibly many other places.
Now,...
How to resume Fragment from BackStack if exists
...ame())){
setTitle ("C");
//set selected item position, etc
}
}
Now, whenever the back stack changes, the title and checked position will reflect the visible Fragment.
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Undoing a git rebase
Does anybody know how to easily undo a git rebase?
18 Answers
18
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DateTime.ToString() format that can be used in a filename or extension?
...
You can use this:
DateTime.Now.ToString("yyyy-dd-M--HH-mm-ss");
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ExecJS and could not find a JavaScript runtime
...
Heroku is now strongly discouraging therubyracer due to memory use. I installed nodejs on my dev machine per this answer and took therubyracer out of my gemfile. See also stackoverflow.com/questions/7092107/….
–...
Returning value from Thread
...;Integer>() {
@Override
public Integer call() {return 2;}
});
Now all you do is say value.get() whenever you need to grab your returned value, the thread is started the very second you give value a value so you don't ever have to say threadName.start() on it.
What a Future is, is a pro...
When should Flask.g be used?
...terns, as linked by Markus, explains some of the changes to g in 0.10:
g now lives in the application context.
Every request pushes a new application context, wiping the old one, so g can still be used to set flags per-request without change to code.
The application context is popped after teardow...
How to map calculated properties with JPA and Hibernate
...e::numeric / 100) * " +
" cents * " +
" date_part('month', age(now(), createdOn)" +
") " +
"/ 12) " +
"/ 100::numeric")
private double interestDollars;
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For-each over an array in JavaScript
...ections, and so on.
I'll quickly note that you can use the ES2015 options now, even on ES5 engines, by transpiling ES2015 to ES5. Search for "ES2015 transpiling" / "ES6 transpiling" for more...
Okay, let's look at our options:
For Actual Arrays
You have three options in ECMAScript 5 ("ES5"), th...
Catching java.lang.OutOfMemoryError?
...same amount of allocated objects as before the unsuccessful allocation and now is the time to drop references to run-time objects to free even more memory that may be required for cleanup. In these cases, it may even be possible to continue but that would definitely be a bad idea as you can never be...