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How does deriving work in Haskell?
... to integrate a new generic deriving mechanism as described in this paper: http://www.dreixel.net/research/pdf/gdmh.pdf
For more on this, see:
GHC wiki: http://hackage.haskell.org/trac/ghc/wiki/Commentary/Compiler/GenericDeriving
Haskell wiki: http://www.haskell.org/haskellwiki/Generics
Hackage: ...
window.location.reload with clear cache [duplicate]
... do this a few ways. One, simply add this meta tag to your head:
<meta http-equiv="Cache-control" content="no-cache">
If you want to remove the document from cache, expires meta tag should work to delete it by setting its content attribute to -1 like so:
<meta http-equiv="Expires" conte...
Full Page
...nding.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Test Layout</title>
<style type="text/css">
...
Web-scraping JavaScript page with Python
...s a javascript rendering service. It’s a lightweight web browser with an HTTP API, implemented in Python 3 using Twisted and QT5.
Essentially we are going to use Splash to render Javascript generated content.
Run the splash server: sudo docker run -p 8050:8050 scrapinghub/splash.
Install the sc...
How can I catch a “catchable fatal error” on PHP type hinting?
...'s still a Throwable and can be handled with a normal try-catch block. see https://wiki.php.net/rfc/throwable-interface
E.g.
<?php
class ClassA {
public function method_a (ClassB $b) { echo 'method_a: ', get_class($b), PHP_EOL; }
}
class ClassWrong{}
class ClassB{}
class ClassC extends ClassB...
jQuery UI Sortable Position
...
Use update instead of stop
http://api.jqueryui.com/sortable/
update( event, ui )
Type: sortupdate
This event is triggered when the user stopped sorting and the DOM
position has changed.
.
stop( event, ui )
Type: sortstop
...
Set default CRAN mirror permanent in R
...a CRAN mirror
# local({r <- getOption("repos")
# r["CRAN"] <- "http://my.local.cran"
# options(repos=r)})
So remove the comment marks and change "http://my.local.cran" to the correct website, e.g.:
local({r <- getOption("repos")
r["CRAN"] <- "http://cran.r-project.o...
Permission is only granted to system app
... tools namespace in the manifest root element
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
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Can I use twitter bootstrap without jquery?
...he Javascript plugins you need jQuery, since they are jQuery plugins.
v3: http://getbootstrap.com/javascript/
v4: https://getbootstrap.com/docs/4.0/getting-started/javascript/
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Android: Want to set custom fonts for whole application not runtime
...ml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res/com.yourpackage.name"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="...