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Get class name of object as string in Swift
... use neither introspection nor manual demangling (no magic!).
Here is a demo:
// Swift 3
import class Foundation.NSObject
func typeName(_ some: Any) -> String {
return (some is Any.Type) ? "\(some)" : "\(type(of: some))"
}
class GenericClass<T> {
var x: T? = nil
}
protocol P...
How to set the prototype of a JavaScript object that has already been instantiated?
... inherited by the new prototype
obj2.foo; // true
obj2.bar; // true
Live demo: http://jsfiddle.net/6Xq3P/
The Custom constructor represents the new prototype, ergo, its Custom.prototype object contains all the new properties which you'd like to use with your original object.
Inside the Custom co...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
... inputs, not some inputs to a function as others are using GA
Here is the demo code for the survival example: http://www.mempko.com/darcs/neural/demos/eaters/
Build instructions:
Install darcs, libboost, liballegro, gcc, cmake, make
darcs clone --lazy http://www.mempko.com/darcs/neural/
cd neural...
Will the base class constructor be automatically called?
...ting out the age of the customer after construction (link to ideone with a demo).
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How to embed a video into GitHub README.md?
...
I combine Alexandre Jasmin and Gab Le Roux answers like this:
[](https://www.youtube.com/watch?v=ek1j272iAmc)
Demo:
You can see this demo on github.
I used gifyoutube here, but I recommend using a local gif converter (l...
window.close and self.close do not close the window in Chrome
... plain window.close(). EG:
// ==UserScript==
// @name window.close demo
// @include http://YOUR_SERVER.COM/YOUR_PATH/*
// @grant GM_addStyle
// ==/UserScript==
setTimeout (window.close, 5000);
Thanks to zanetu for the update. Note that this will not work if there is only one ta...
Better way to set distance between flexbox items
...uce a 10px gap between each child and between each child and their parent.
Demo
.upper
{
margin:30px;
display:flex;
flex-direction:row;
width:300px;
height:80px;
border:1px red solid;
padding:5px; /* this */
}
.upper > div
{
flex:1 1 auto;
border:1px red solid;
text-alig...
JavaScript click handler not working as expected inside a for loop [duplicate]
...
Working DEMO
This is a classic JavaScript closure problem. Reference to the i object is being stored in the click handler closure, rather than the actual value of i.
Every single click handler will refer to the same object because ...
App Inventor 2 FTP 上传下载全方案总结 · App Inventor 2 中文网
..._EXTERNAL_STORAGE
.aix 拓展下载：
com.KIO4_FTPCliente.aix
demo 下载：
KIO4_FTPCliente_demo.aia
TaifunFTP （收费的:$12，请自行研究）
地址：https://puravidaapps.com/ftp.php
FTPClient （收费的:$5，请自行研究）
地址：https://community.appinventor.mit....
What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
...(function(f) {
return f.length;
});
console.log(bar); // 1,2,3
DEMO
The other awesome thing is lexical this... Usually, you'd do something like:
function Foo() {
this.name = name;
this.count = 0;
this.startCounting();
}
Foo.prototype.startCounting = function() {
var...