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Why should the copy constructor accept its parameter by reference in C++?
... reference, it's by value. To do that you make a copy, and to do that you call the copy constructor. But to do that, we need to make a new value, so we call the copy constructor, and so on...
(You would have infinite recursion because "to make a copy, you need to make a copy".)
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Executing JavaScript without a browser?
...n on the topic, but if you want direct links, here they are:
You can install Rhino as others have pointed out. This post shows an easy way to get it up and running and how to alias a command to invoke it easily
If you're on a Mac, you can use JavaScriptCore, which invokes WebKit's JavaScript engin...
PHP append one array to another (not array_push or +)
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Just be careful if your keys are not a numbers but strings, From doc: If the input arrays have the same string keys, then the later value for that key will overwrite the previous one
– Dusan Plavak
Feb 5 '16 at 1:53
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How to simulate Server.Transfer in ASP.NET MVC?
.../ </summary>
public class TransferResult : ActionResult
{
public string Url { get; private set; }
public TransferResult(string url)
{
this.Url = url;
}
public override void ExecuteResult(ControllerContext context)
{
if (context == null)
thr...
Why must a lambda expression be cast when supplied as a plain Delegate parameter
...void Run()
{
// Declare
var c = Lambda<Func<int, string>>.Cast;
// Use
var f1 = c(x => x.ToString());
var f2 = c(x => "Hello!");
var f3 = c(x => (x + x).ToString());
}
}
...
Can I inject a service into a directive in AngularJS?
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I had to add '_myData = myData' prior to the return {} and then reference the object as _myData inside of the link function.
– Jelling
Nov 28 '13 at 15:58
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Should I Dispose() DataSet and DataTable?
... both implement IDisposable, so, by conventional best practices, I should call their Dispose() methods.
10 Answers
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How to build Qt for Visual Studio 2010
... stable solution for using Qt with Visual Studio 2010, so after collecting all the bits of information and some trial and error, I would like to write my solution into a guide.
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How do I get a distinct, ordered list of names from a DataTable using LINQ?
... this
var names = (from DataRow dr in dataTable.Rows
select (string)dr["Name"]).Distinct().OrderBy( name => name );
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Remove sensitive files and their commits from Git history
... (1MB by default) in your repo's history will be scanned, and any matching string (that isn't in your latest commit) will be replaced with the string "***REMOVED***". You can then use git gc to clean away the dead data:
$ git gc --prune=now --aggressive
The BFG is typically 10-50x faster than runni...