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Error installing mysql2: Failed to build gem native extension
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i have the same issue on windows 7..any ideas? the command above didnt work for me..
– femi
Apr 1 '11 at 16:15
38
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Exiting from python Command Line
... active python what is happening is that exit is a function. If you do not call the function it will print out the string representation of the object. This is the default behaviour for any object returned. It's just that the designers thought people might try to type exit to exit the interpreter, s...
Convert Enum to String
...y tests, Enum.GetName was faster and by decent margin. Internally ToString calls Enum.GetName. From source for .NET 4.0, the essentials:
public override String ToString()
{
return Enum.InternalFormat((RuntimeType)GetType(), GetValue());
}
private static String InternalFormat(RuntimeType eT, Ob...
UI Terminology: Logon vs Login [closed]
I am crafting an application and cannot decide whether to use the terms Login/out or Logon/off . Is there a more correct option between these two? Should I use something else entirely (like "Sign on/off").
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Callback after all asynchronous forEach callbacks are completed
...everal ways to accomplish what you want:
Using a simple counter
function callback () { console.log('all done'); }
var itemsProcessed = 0;
[1, 2, 3].forEach((item, index, array) => {
asyncFunction(item, () => {
itemsProcessed++;
if(itemsProcessed === array.length) {
callback...
Why doesn't C# support the return of references?
...if (x > y)
return ref x;
else
return ref y;
}
and then call it with
int a = 123;
int b = 456;
ref int c = ref Max(ref a, ref b);
c += 100;
Console.WriteLine(b); // 556!
I know empirically that it is possible to build a version of C# that supports these features because I ha...
What's the best way to cancel event propagation between nested ng-click calls?
...d in it. Clicking the black overlay dismisses it; clicking the image will call a function that shows the next image.
9 Ans...
C# 4.0 optional out/ref arguments
...with another method that doesn't have out / ref parameters, and which just calls your current method.
public bool SomeMethod(out string input)
{
...
}
// new overload
public bool SomeMethod()
{
string temp;
return SomeMethod(out temp);
}
If you have C# 7.0, you can simplify:
// new ov...
PHP 5.4 Call-time pass-by-reference - Easy fix available?
...
You should be denoting the call by reference in the function definition, not the actual call. Since PHP started showing the deprecation errors in version 5.3, I would say it would be a good idea to rewrite the code.
From the documentation:
There...
How do I detect “shift+enter” and generate a new line in Textarea?
Currently, if the person presses enter inside the text area, the form will submit.
Good, I want that.
13 Answers
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