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Best way to do multiple constructors in PHP
...have an array of the db row:
$student = Student::withRow( $row );
Technically you're not building multiple constructors, just static helper methods, but you get to avoid a lot of spaghetti code in the constructor this way.
...
Where and why do I have to put the “template” and “typename” keywords?
...piler doesn't need to know the meaning of a name in order to parse and basically know what action a line of code does. In C++, the above however can yield vastly different interpretations depending on what t means. If it's a type, then it will be a declaration of a pointer f. However if it's not a t...
Web-scraping JavaScript page with Python
... url in self.start_urls:
yield SplashRequest(
url=url, callback=self.parse, endpoint='render.html'
)
def parse(self, response):
for q in response.css("div.quote"):
quote = QuoteItem()
quote["author"] = q.css(".author::text").extract_first()
...
Disable ScrollView Programmatically?
...le (just changed the ScrollView to your special LockableScrollView).
Then call
((LockableScrollView)findViewById(R.id.QuranGalleryScrollView)).setScrollingEnabled(false);
to disable scrolling of the view.
I think that you have more than just the issue of disabling scrolling though to achieve yo...
What is “lifting” in Haskell?
...will now refute me by showing how lifts are a category or something).
Typically you have some data type with a parameter. Something like
data Foo a = Foo { ...stuff here ...}
Suppose you find that a lot of uses of Foo take numeric types (Int, Double etc) and you keep having to write code that u...
When should I use Arrow functions in ECMAScript 6?
...to use the same thisObject as the root. If even a single standard function callback is mixed in with a bunch of arrow functions there's a chance the scope will become messed up.
Compactness: Arrow functions are easier to read and write. (This may seem opinionated so I will give a few examples furthe...
Specify an SSH key for git push for a given domain
...y git command, on any remote, with an alternative SSH key. The idea is basically to switch your SSH identity when running the git commands.
Advantages relative to the host alias approach in the other answer:
Will work with any git commands or aliases, even if you can't specify the remote explicit...
How to create a DataTable in C# and how to add rows?
...
Don't forget to call dt.AcceptChanges() in case you use DataView with filter other than CurrentRows.
– Salamander2007
Jun 25 '09 at 7:44
...
Is Ruby pass by reference or by value?
...o a value of 'foo'?
str = 'foo'
str.object_id # => 2000
A: A label called str is created that points at the object 'foo', which for the state of this Ruby interpreter happens to be at memory location 2000.
Q2: What happens when you assign the existing variable str to a new object using =?...
Data access object (DAO) in Java
I was going through a document and I came across a term called DAO . I found out that it is a Data Access Object. Can someone please explain me what this actually is?
...