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Why are Perl 5's function prototypes bad?
...efault list context.)
In particular, they make it hard to pass parameters from arrays. For example:
my @array = qw(a b c);
foo(@array);
foo(@array[0..1]);
foo($array[0], $array[1], $array[2]);
sub foo ($;$$) { print "@_\n" }
foo(@array);
foo(@array[0..1]);
foo($array[0], $array[1], $array[2]);...
Make Iframe to fit 100% of container's remaining height
...idth: 100%; and height: 100%; properties, it will span over entire screen. From this point on, you can put <iframe> tag inside it and span it over remaining space (both in width and in height) with simple width: 100%; height: 100%; CSS instruction.
Example code
body {
marg...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...rally contains) the connection (information). This is exactly the opposite from the OO/model world.
This may help to understand:
public class Customer {
// This field doesn't exist in the database
// It is simulated with a SQL query
// "OO speak": Customer owns the orders
priva...
Which way is best for creating an object in JavaScript? Is `var` necessary before an object property
...ne object of a kind (like a singleton). If you want this object to inherit from another one, then you have to use a constructor function though.
Use way 3 if you want to initialize properties of the object depending on other properties of it or if you have dynamic property names.
Update: As reques...
Detail change after Git pull
...
@Jefromi fatal: ambiguous argument 'firstDesign@': unknown revision or path not in the working tree. I keep getting this error. Although git reflog firstDesign has this output.
– unrealsoul007
...
The written versions of the logical operators
...d operators, x | y is sufficiently visually distinct (in monospaced fonts) from x || y, but I do find the ! in e.g. if (!f(xyz) && ... easier to miss than if (not f(xyz) && ....
– Tony Delroy
Aug 20 '15 at 6:00
...
TypeScript “this” scoping issue when called in jquery callback
...de the original method on the prototype, and instead yield a bound version from the
// instance itself. The original method will no longer be accessible. Inside a getter, 'this' will refer to the instance.
var instance = this;
Object.defineProperty(instance, propKey.toString(), {
...
Erlang's 99.9999999% (nine nines) reliability
... in one part of a system can have on other parts.
Clustering. This follows from the previous point: Erlang's message passing mechanism works transparently between machines on a network, so a sending process doesn't even have to care that the receiver is on a separate machine. This provides an easy m...
Why Large Object Heap and why do we care?
...the system to wait until a gen2 collection before trying to reclaim memory from even short-lived LOH objects, I can't see any performance advantage to declaring LOH objects (and any objects to which they hold references) unconditionally live during gen0 and gen1 collections. Are there some optimiza...
JPA: How to have one-to-many relation of the same Entity type
...:
public static void main(String[] args) {
EntityManager em = ... // from EntityManagerFactory, injection, etc.
em.getTransaction().begin();
A parent = new A();
A son = new A();
A daughter = new A();
son.setParent(parent);
daughter.setParent(parent);
paren...