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“Wrong type argument: commandp” error when binding a lambda to a key
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127
global-set-key expects an interactive command. (lambda () (interactive) (forward-line 5)) ought...
How to set a default value for a datetime column to record creation time in a migration?
... end
end
end
See discussion at https://github.com/rails/rails/issues/27077 and answer there by prathamesh-sonpatki
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Installing older version of R package
I am trying to use Rpy2 and ggplot2 but I get an error. After some searching for the error online, I found that the error occurs because there are changes in the ggplot2 package that are not yet reflected in Rpy2 (for example, see this post (Edit: Link is now dead)).
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Create a .txt file if doesn't exist, and if it does append a new line
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answered Mar 28 '12 at 12:42
Daniel HilgarthDaniel Hilgarth
156k3535 gold badges285285 silver badges397397 bronze badges
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NSDictionary - Need to check whether dictionary contains key-value pair or not
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2 Answers
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Is there a builtin confirmation dialog in Windows Forms?
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223
Here is an example. You can try something like this.
var confirmResult = MessageBox.Show("Are...
How random is JavaScript's Math.random?
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Given numbers between 1 and 100.
9 have 1 digit (1-9)
90 have 2 digits (10-99)
1 has 3 digits (100)
Given numbers between 1 and 1000.
9 have 1 digit
90 have 2 digits
900 have 3 digits
1 has 4 digits
and so on.
So if you select some at random, then that vast majority of selected n...
PHP server on local machine?
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answered Nov 5 '09 at 2:52
LukmanLukman
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How many String objects will be created when using a plus sign?
...do this in a method:
void Foo() {
String one = "1";
String two = "2";
String result = one + two + "34";
Console.Out.WriteLine(result);
}
then the compiler seems to emit the code using String.Concat as @Joachim answered (+1 to him btw).
If you define them as constants, e.g.:
cons...