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Why does InetAddress.isReachable return false, when I can ping the IP address?
...ting if you're online and capable of resolving external hosts (i.e. google.com) ... Which generally seems to work on *NIX machines.
The issue
There is alot of chatter about this :
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Detect internet Connection using Java
How do I test the availability of t...
Why should Java ThreadLocal variables be static
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Regular expressions in C: examples?
...ike you might be talking about the POSIX regular expression library, which comes with most (all?) *nixes. Here's an example of using POSIX regexes in C (based on this):
#include <regex.h>
regex_t regex;
int reti;
char msgbuf[100];
/* Compile regular expression */
reti = regcomp(&...
How can I convert this foreach code to Parallel.ForEach?
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@fosb The problem is the question title was edited to completely change the meaning... so this answer no longer makes any sense. Having said that, it's still a poor answer
– aw04
Sep 9 '16 at 14:29
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Call a function with argument list in python
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IN vs OR in the SQL WHERE Clause
...flagranti: No optimizer is perfect unfortunately. Optimizers are extremely complex programs and each implementation will have its own strengths and weaknesses. This is why I say you should profile on a specific implementation. I'd imagine that the extra structure of the IN method makes it easier to ...
Python: Select subset from list based on index set
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You could just use list comprehension:
property_asel = [val for is_good, val in zip(good_objects, property_a) if is_good]
or
property_asel = [property_a[i] for i in good_indices]
The latter one is faster because there are fewer good_indices th...
What are type lambdas in Scala and what are their benefits?
... to some third monad. When you start to stack, these kinds of constructs become very necessary. I never instantiate an FG, of course; it's just there as a hack to let me express what I want in the type system.
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Determine distance from the top of a div to top of window with javascript
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You can use .offset() to get the offset compared to the document element and then use the scrollTop property of the window element to find how far down the page the user has scrolled:
var scrollTop = $(window).scrollTop(),
elementOffset = $('#my-element')....
Get Base64 encode file-data from Input Form
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