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What's the standard way to work with dates and times in Scala? Should I use Java types or there are
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From Java SE 8 onwards, users are asked to migrate to java.time (JSR-310). There are efforts on creating scala libraries wrapping java.time for scala such as scala-time. If targeting lower than SE 8 use one of the below. Als...
Fastest way to check a string contain another substring in JavaScript?
... way faster with regular expressions.
Update 2018:
Just to save people from running the tests themselves, here are the current results for most common browsers, the percentages indicate performance increase over the next fastest result (which varies between browsers):
Chrome: indexOf (~98% fast...
What are bitwise shift (bit-shift) operators and how do they work?
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@Mahn, you're reading it backwards from my intent. Substitute Y for X means to replace X with Y. Y is the substitute for X. So the shift is the substitute for the multiplication.
– Derek Park
Jan 27 '14 at 22:13
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Convert String to double in Java
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@TinyBelly: you need to extract the part of the text from the string that you want to parse for the double. Here's one way you could do it for your case, though I can't guarantee it will work for everything: double total = Double.parseDouble(jlbTotal.getText().replaceAll("[^0-9...
PHP validation/regex for URL
...d be cleaned up but since it worked. I've more or less just copied it over from project to project.
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How do lexical closures work?
...f you call func with a second parameter this will overwrite the original i from the definition. :-(
– Pascal
Mar 28 '19 at 16:05
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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...h a custom join table in a disconnected app. Even with the entity grabbed from the database, I was getting referential errors, etc. I was using "context.Entry(score).State = System.Data.Entity.EntityState.Modified;" but this finally worked! Thank you!!
– firecape
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PHP ORMs: Doctrine vs. Propel
...JoinFoobar($c);
// Doctrine
$items = Doctrine_Query::create()
->from('Example e')
->leftJoin('e.Foobar')
->where('e.id = ?', 20)
->execute();
?>
(Doctrine's implementation is much more intuitive to me).
Also, I really prefer the way you manage relations...
public static const in TypeScript
... export const BOOK_SHELF_NONE: string = 'NONE';
}
Then you can import it from anywhere else:
import {Library} from './Library';
console.log(Library.BOOK_SHELF_NONE);
If you need a class there as well include it inside the namespace: export class Book {...}
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A good book for learning D3.js [closed]
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As @Autio already mentioned, there are the tutorials from Scott Murray on his website.
You will also note that on his site, he has a link to his recent d3 book,
Interactive Data Visualization for the Web.
However, that book is now available online for free, along with embed...