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How to handle multiple heterogeneous inputs with Logstash?
Let's say you have 2 very different types of logs such as technical and business logs and you want:
3 Answers
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What does android:layout_weight mean?
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With layout_weight you can specify a size ratio between multiple views. E.g. you have a MapView and a table which should show some additional information to the map. The map should use 3/4 of the screen and table should use 1/4 of the screen. Then you will...
What is the !! (not not) operator in JavaScript?
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Converts Object to boolean. If it was falsey (e.g. 0, null, undefined, etc.), it will be false, otherwise, true.
!oObject // inverted boolean
!!oObject // non inverted boolean so true boolean representation
So !! is not an operator, it's just the ! ...
Is it unnecessary to put super() in constructor?
Isn't this one automatically put by the compiler if I don't put it in a subclass's constructor?
6 Answers
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How does delete[] know it's an array?
... result in undefined behavior. Your second main() example is unsafe, even if it doesn't immediately crash.
The compiler does have to keep track of how many objects need to be deleted somehow. It may do this by over-allocating enough to store the array size. For more details, see the C++ Super FA...
How to write loop in a Makefile?
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The following will do it if, as I assume by your use of ./a.out, you're on a UNIX-type platform.
for number in 1 2 3 4 ; do \
./a.out $$number ; \
done
Test as follows:
target:
for number in 1 2 3 4 ; do \
echo $$number ; \
do...
What is the C# equivalent of NaN or IsNumeric?
... guess I can use Double.Parse or a regex (see below) but I was wondering if there is some built in way to do this, such as javascript's NaN() or IsNumeric() (was that VB, I can't remember?).
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How to detect the physical connected state of a network cable/connector?
... Note that as Marco says below the interface must be up (even if not configured) to query these values.
– Jamie Kitson
Aug 25 '12 at 13:27
11
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Simplest way to check if key exists in object using CoffeeScript
In CoffeeScript, what is the simplest way to check if a key exists in an object?
3 Answers
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Finishing current activity from a fragment
... Oct 26 '11 at 19:41
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