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Extending an Object in Javascript
...t
The TypeScript equivalent looks the same:
interface Person {
name: string,
greet: Function
}
const Person = {
name: 'Anonymous',
greet: function(): void { console.log(`Hi, I am ${this.name}.` }
}
const jack: Person = Object.create(Person)
jack.name = 'Jack'
jack.greet(...
Case objects vs Enumerations in Scala
... that Enumerations come with support for instantiating them from some name String. For example:
object Currency extends Enumeration {
val GBP = Value("GBP")
val EUR = Value("EUR") //etc.
}
Then you can do:
val ccy = Currency.withName("EUR")
This is useful when wishing to persist enumeration...
Return all enumerables with yield return at once; without looping through
...numeration, making it possible to do things like...
public IEnumerable<string> ConcatLists(params IEnumerable<string>[] lists)
{
foreach (IEnumerable<string> list in lists)
{
foreach (string s in list)
{
yield return s;
}
}
}
...
What are inline namespaces for?
...udes V100.h. You also modify Mine.h at the same time, of course, to add an extra include. Mine.h is part of the library, not part of the client code.
– Steve Jessop
Jun 13 '12 at 14:01
...
Convert integer to binary in C#
...
Your example has an integer expressed as a string. Let's say your integer was actually an integer, and you want to take the integer and convert it to a binary string.
int value = 8;
string binary = Convert.ToString(value, 2);
Which returns 1000.
...
How to force a web browser NOT to cache images
...
Armin Ronacher has the correct idea. The problem is random strings can collide. I would use:
<img src="picture.jpg?1222259157.415" alt="">
Where "1222259157.415" is the current time on the server.
Generate time by Javascript with performance.now() or by Python with time.time...
How to add spacing between UITableViewCell
...Controller, UITableViewDelegate, UITableViewDataSource {
// These strings will be the data for the table view cells
let animals: [String] = ["Horse", "Cow", "Camel", "Sheep", "Goat"]
let cellReuseIdentifier = "cell"
let cellSpacingHeight: CGFloat = 5
@IBOutlet var ...
When creating a service with sc.exe how to pass in context parameters?
...ss:
class MyService : ServiceBase
{
protected override void OnStart(string[] args)
{
}
}
I regis
How to detect if a function is called as constructor?
...ert(isConstructor);
}
Obviously this is not ideal, since you now have an extra useless property on every object constructed by x that could be overwritten, but I think it's the best you can do.
(*) "instance of" is an inaccurate term but is close enough, and more concise than "object that has bee...
What is the difference between range and xrange functions in Python 2.X?
...e lists -- as you can see, time-wise, for a list of a million entries, the extra overhead is only 0.04 seconds. And as Corey points out, in Python 3.0 .xrange() will go away and .range() will give you nice iterator behavior anyway.
...