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Oracle PL/SQL - How to create a simple array variable?
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You can use VARRAY for a fixed-size array:
declare
type array_t is varray(3) of varchar2(10);
array array_t := array_t('Matt', 'Joanne', 'Robert');
begin
for i in 1..array.count loop
dbms_output.put_line(array(i));
end loop;...
What is the difference between a shim and a polyfill?
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A shim is any piece of code that performs interception of an API call and provides a layer of abstraction. It isn't necessarily restricted to a web application or HTML5/CSS3.
A polyfill is a type of shim that retrofits legacy browsers with modern HTML5/CSS3 fea...
How to use enum values in f:selectItem(s)
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JSF has a builtin converter for enum, so this should do:
@ManagedBean
@ApplicationScoped
public class Data {
public Status[] getStatuses() {
return Status.values();
}
}
with
<h:selectOneMenu value="#{bean.question.status}" >
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Does Java 8 provide a good way to repeat a value or function?
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For this specific example, you could do:
IntStream.rangeClosed(1, 8)
.forEach(System.out::println);
If you need a step different from 1, you can use a mapping function, for example, for a step of 2:
IntStream.ran...
Why can I create a class named “var”?
... @CallumRogers: that's exactly why the C# team did this. Same for other later introduced "keywords" like from, join etc (all contextual by the way).
– Abel
May 15 '12 at 17:38
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Typescript: difference between String and string
...ar obj = {}; // not var obj = new Object();
If you really had a penchant for the string, you could use it in TypeScript in one of two ways...
var str: String = new String("Hello world"); // Uses the JavaScript String object
var str: string = String("Hello World"); // Uses the TypeScript string ty...
Why are C# interface methods not declared abstract or virtual?
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For the interface, the addition of the abstract, or even the public keywords would be redundant, so you omit them:
interface MyInterface {
void Method();
}
In the CIL, the method is marked virtual and abstract.
(Note th...
How much overhead does SSL impose?
...answer, but is there a generic order-of-magnitude estimate approximation for the encryption overhead of SSL versus unencrypted socket communication? I'm talking only about the comm processing and wire time, not counting application-level processing.
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How do you specify the date format used when JAXB marshals xsd:dateTime?
...LGregorianCalendar ) into an xsd:dateTime element. How can you specify the format of the resulting XML?
5 Answers
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How can I reset a react component including all transitively reachable state?
...de.
In React, if you have to err on generalization or specialization: aim for specialization. As a corollary, the state tree for your component should have a certain parsimony (it's fine to tastefully break this rule if you're scaffolding out a brand-spanking new product though).
Anyway this is ho...