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Java String array: is there a size of method?
I come from a php background and in php, there is an array_size() function which tells you how many elements in the array are used.
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MySQL Workbench: How to keep the connection alive
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From the now unavailable internet archive:
Go to Edit -> Preferences -> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400.
Close and reopen MyS...
What does “atomic” mean in programming?
...nchronization mechanisms in order to make sure that the operation is seen, from any other thread, as a single, atomic (i.e. not splittable in parts), operation. That means that any other thread, once the operation is made atomic, will either see the value of foo before the assignment, or after the a...
I get exception when using Thread.sleep(x) or wait()
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You have a lot of reading ahead of you. From compiler errors through exception handling, threading and thread interruptions. But this will do what you want:
try {
Thread.sleep(1000); //1000 milliseconds is one second.
} catch(InterruptedExcepti...
check if a std::vector contains a certain object? [duplicate]
...td::set also guarantees all the added elements are unique, which saves you from having to do anything like if not contained then push_back()....
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Printing the last column of a line in a file
...ore lines in file and so the pipe to grep is never closed.
If you omit -f from tail the output is shown immediately:
tail file | grep A1 | awk '{print $NF}'
@EdMorton is right of course. Awk can search for A1 as well, which shortens the command line to
tail file | awk '/A1/ {print $NF}'
or...
Behaviour of increment and decrement operators in Python
...parser is a blessing, not a curse. It puts us in handcuffs that prevent us from going overboard and ending up with funky grammar rules like some other dynamic languages that will go unnamed, such as Perl." I don't see how to disambiguate + + and ++ without breaking LL(1).
– Mik...
What is the JavaScript >>> operator and how do you use it?
I was looking at code from Mozilla that add a filter method to Array and it had a line of code that confused me.
7 Answers
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Disable cross domain web security in Firefox
...ont-awesome download failed issue I was having on my local dev environment from a cross-origin restriction.
– Daniel Nalbach
Jun 4 '15 at 16:12
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Which equals operator (== vs ===) should be used in JavaScript comparisons?
...ntirely and just don't use the String constructor to create string objects from string literals.
Reference
http://www.ecma-international.org/ecma-262/5.1/#sec-11.9.3
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