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What is DOM Event delegation?
...ame effect.
So what's the benefit?
Imagine you now have a need to dynamically add new <li> items to the above list via DOM manipulation:
var newLi = document.createElement('li');
newLi.innerHTML = 'Four';
myUL.appendChild(newLi);
Without using event delegation you would have to "rebind" t...
What's the difference between using “let” and “var”?
...does not create a property on the global object:
var foo = "Foo"; // globally scoped
let bar = "Bar"; // globally scoped
console.log(window.foo); // Foo
console.log(window.bar); // undefined
Redeclaration
In strict mode, var will let you re-declare the same variable in the same scope while let...
Is R's apply family more than syntactic sugar?
...tem elapsed
7.52 0.00 7.58
Edit 2:
Regarding the usage of parallel packages for R (e.g. rpvm, rmpi, snow), these do generally provide apply family functions (even the foreach package is essentially equivalent, despite the name). Here's a simple example of the sapply function in snow:
...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...emember this when you create and access an array.
Array Length
In C#, usually, arrays are 0-based. It means that first element has index 0 and last element has index Length - 1 (where Length is total number of items in the array) so this code doesn't work:
array[array.Length] = 0;
Moreover plea...
How do I write a Firefox Addon? [closed]
...
We tried to make http://developer.mozilla.org/en/Extensions answer all those questions. The first three links in the documentation section are about getting started (that includes Adam's link). The newsgroup and the irc channel in the Community section are the official discussion boards.
Mo...
How can I add (simple) tracing in C#? [closed]
...roduce some tracing to a C# application I am writing. Sadly, I can never really remember how it works and would like a tutorial with reference qualities to check up on every now and then. It should include:
...
C++ blogs that you regularly follow? [closed]
What are all the C++ blogs that you follow?
51 Answers
51
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SQL to LINQ Tool [closed]
...elete this accepted answer. It used to be good, but now it isn't. Beware really old posts, guys. I'm removing the link.
[Linqer] is a SQL to LINQ converter tool. It helps you to learn LINQ and convert your existing SQL statements.
Not every SQL statement can be converted to LINQ, but Linqer covers m...
Calling generic method with a type argument known only at execution time [duplicate]
...t notation - there's no point in using a query expression when you've basically just got a where clause.
using System;
using System.Linq;
using System.Reflection;
namespace Interfaces
{
interface IFoo {}
interface IBar {}
interface IBaz {}
}
public class Test
{
public static void ...
Executing command line programs from within python [duplicate]
...n os.system.
import subprocess
#subprocess.check_output(['ls', '-l']) # All that is technically needed...
print(subprocess.check_output(['ls', '-l']))
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