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Getting and removing the first character of a string
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170
See ?substring.
x <- 'hello stackoverflow'
substring(x, 1, 1)
## [1] "h"
substring(x, 2)
## ...
super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
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answered Nov 11 '09 at 4:40
stevehasteveha
64.4k1616 gold badges8181 silver badges109109 bronze badges
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Is PHP's count() function O(1) or O(n) for arrays?
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edited Apr 20 '13 at 22:03
John Carter
49k2424 gold badges100100 silver badges136136 bronze badges
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Git: how to reverse-merge a commit?
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106
To create a new commit that 'undoes' the changes of a past commit, use:
$ git revert <commi...
How do you do a deep copy of an object in .NET? [duplicate]
...= new BinaryFormatter();
formatter.Serialize(ms, obj);
ms.Position = 0;
return (T) formatter.Deserialize(ms);
}
}
Notes:
Your class MUST be marked as [Serializable] for this to work.
Your source file must include the following code:
using System.Runtime.Serialization.Formatters.Bin...
Literal suffix for byte in .NET?
... of a literal suffix on the MSDN reference for Byte as well as in the C# 4.0 Language Specification. The only literal suffixes in C# are for integer and real numbers as follows:
u = uint
l = long
ul = ulong
f = float
m = decimal
d = double
If you want to use var, you can always cast the byte as i...
How to set transform origin in SVG
...lem is, by default, it always applies the transform around the origin at (0, 0) – top left.
6 Answers
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How to programmatically set the layout_align_parent_right attribute of a Button in Relative Layout?
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640
You can access any LayoutParams from code using View.getLayoutParams. You just have to be very a...
How to hide one item in an Android Spinner
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50
To hide an arbitrary item or more than one item I think that you can implement your own adapter ...
How to specify font attributes for all elements on an html web page?
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* {
font-size: 100%;
font-family: Arial;
}
The asterisk implies all elements.
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