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Count, size, length…too many choices in Ruby?
... an element or predicate and count only those items that match.
> [1,2,3].count{|x| x > 2 }
=> 1
In the case where you don't provide a parameter to count it has basically the same effect as calling length. There can be a performance difference though.
We can see from the source code f...
Large Numbers in Java
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153
You can use the BigInteger class for integers and BigDecimal for numbers with decimal digits. Bo...
How to Display Selected Item in Bootstrap Button Dropdown Title
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edited Mar 3 '14 at 6:23
answered Nov 18 '12 at 4:45
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Signal handling with multiple threads in Linux
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35
This is slightly nuanced, based on which version of the Linux kernel you are using.
Assuming 2...
Zero-pad digits in string
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Gras Double
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answered Nov 27 '08 at 17:59
Konrad RudolphKonra...
JQuery to load Javascript file dynamically
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Paolo BergantinoPaolo Bergantino
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Determine if $.ajax error is a timeout
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356
If your error event handler takes the three arguments (xmlhttprequest, textstatus, and message...
C# 3.0 auto-properties — useful or not? [closed]
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edited Apr 7 '14 at 18:32
yoozer8
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answered Au...
Why does “,,,” == Array(4) in Javascript?
...ring()
"a,b,c"
How the comparison works is described in section 11.9.3 of the specification. There you will see (x == y):
8. If Type(x) is either String or Number and Type(y) is Object,
return the result of the comparison x == ToPrimitive(y).
(arrays are objects in JavaScript)
and ...