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How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
...(a1.length, *a2)
or append and flatten:
(a1 << a2).flatten! # a call to #flatten instead would return a new array
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Convert interface{} to int
...e type conversion, look at the code below:
package main
import "fmt"
func foo(a interface{}) {
fmt.Println(a.(int)) // conversion of interface into int
}
func main() {
var a int = 10
foo(a)
}
This code executes perfectly and converts interface type to int type
For an expression x...
method overloading vs optional parameter in C# 4.0 [duplicate]
...the number of parameters.
For example say you want a method foo to be be called/used like so, foo(), foo(1), foo(1,2), foo(1,2, "hello"). With method overloading you would implement the solution like this,
///Base foo method
public void DoFoo(int a, long b, string c)
{
//Do something
}
/// F...
How to get the list of properties of a class?
How do I get a list of all the properties of a class?
10 Answers
10
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What is “export default” in javascript?
...he default export can be imported without using braces. This answer is actually pretty wrong as it says you can only use default when there is only one export in a file, which is not true at all. You can have several exports in the same file, but of course only 1 of them can be set as the default on...
ES6 class variable alternatives
...is syntax working.
The notes in the ES wiki for the proposal in ES6 (maximally minimal classes) note:
There is (intentionally) no direct declarative way to define either prototype data properties (other than methods) class properties, or instance property
Class properties and prototype data proper...
How do exceptions work (behind the scenes) in c++
...
Instead of guessing, I decided to actually look at the generated code with a small piece of C++ code and a somewhat old Linux install.
class MyException
{
public:
MyException() { }
~MyException() { }
};
void my_throwing_function(bool throwit)
{
if (...
AngularJS: ng-show / ng-hide not working with `{{ }}` interpolation
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Thanks, this was not very intuitive (as you can tell from all the up-votes)
– Sentient
Mar 14 '14 at 0:51
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AngularJS and its use of Dollar Variables
...="n = { visible: 'foo', $ignore: 'bar' };">{{ n }}</div>
Additionally when adding an explicit watcher on a scope object, changes to properties with a leading dollar sign of this object will not trigger the watcher. See this updated fiddle.
angular.equals() ignores keys prefixed with $.
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What is the 'dynamic' type in C# 4.0 used for?
C# 4.0 introduced a new type called 'dynamic'. It all sounds good, but what would a programmer use it for?
10 Answers
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