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How to write asynchronous functions for Node.js
...ing IO is better. The best way to understand it is to go watch some videos by ryan dahl.
How do I write asynchronous functions for Node?
Just write normal functions, the only difference is that they are not executed immediately but passed around as callbacks.
How should I implement error e...
Naming convention for Scala constants?
...style, camel case with first letter are upper case. It's laid down clearly by Odersky on Programming in Scala.
The style is also followed by the standard library, and has some support in language semantics: identifiers starting with upper case are treated as constants in pattern matching.
(Section...
instantiate a class from a variable in PHP?
...d parameters
PHP >= 5.6
As of PHP 5.6 you can simplify this even more by using Argument Unpacking:
// The "..." is part of the language and indicates an argument array to unpack.
$module = new $className(...$arrayOfConstructorParameters);
Thanks to DisgruntledGoat for pointing that out.
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When should I use the assets as opposed to raw resources in Android?
...ndle to it
based on a String. However some operations are more easily done by
placing files in this folder, like copying a database file to the
system’s memory. There’s no (easy) way to create an Android XML
reference to files inside the Assets folder.
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Display string as html in asp.net mvc view
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IHtmlString as mentioned by @Jerad Rose is much better
– Pratyush Dhanuka
Aug 20 '18 at 11:30
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How to reshape data from long to wide format
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I would say base R still wins vote-wise by a factor of about 2 to 1
– vonjd
Nov 22 '18 at 15:14
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Resource interpreted as Document but transferred with MIME type application/zip
...oblem when serving up a PDF file (MIME type application/pdf) and solved it by setting the Content-Disposition header, e.g.:
Content-Disposition: attachment; filename=foo.pdf
Hope that helps.
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How to reload apache configuration for a site without restarting apache
...says things like apachectl graceful: Gracefully restarts the Apache daemon by sending it a SIGUSR1. If the daemon is not running, it is started. This differs from a normal restart in that currently open connections are not aborted.
– Tyler Collier
Feb 18 '17 at...
How to drop columns using Rails migration
...olumn :table_name, :column_name
For instance:
remove_column :users, :hobby
would remove the hobby Column from the users table.
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How do I get git to default to ssh and not https for new repositories
...stead of HTTPS when connecting to GitHub/BitBucket, so you'll authenticate by certificate by default, instead of being prompted for a password.
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