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What is the difference between LL and LR parsing?
...sers come in many flavors (LR(0), SLR(1), LALR(1), LR(1), IELR(1), GLR(0), etc.) and are far more powerful. They also tend to have much more complex and are almost always generated by tools like yacc or bison. LL parsers also come in many flavors (including LL(*), which is used by the ANTLR tool),...
How to calculate the time interval between two time strings
...() method (since Python 2.7)), hours (td / timedelta(hours=1) (Python 3)), etc.
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How can I plot with 2 different y-axes?
...be used to superimpose plots of different types – bar plots, histograms, etc..
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How does Java handle integer underflows and overflows and how would you check for it?
... long or maybe java.math.BigInteger. The last one doesn't overflow, practically, the available JVM memory is the limit.
If you happen to be on Java8 already, then you can make use of the new Math#addExact() and Math#subtractExact() methods which will throw an ArithmeticException on overflow.
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Open Sublime Text from Terminal in macOS
... This would mean that you would have to check what you've typed (spelling, etc.) OR that Sublime Text isn't installed!
Check ".bash_profile":
Now it's time to create your symbolic link in your PATH folder, BUT, before we do, let's check your profile file by using nano ~/.bash_profile. These are the...
“The certificate chain was issued by an authority that is not trusted” when connecting DB in VM Role
...ensuring that the two machines are directly connected on the same network, etc.) -- Still, it's a bit cringe, but hey, Apple shipped MITM enabled devices for a couple of years before bothering to fix anything? -- So, it's probably fine. ????
– BrainSlugs83
Aug ...
What's the right way to pass form element state to sibling/parent elements?
...ing deeply nested data, state validation, global state with setState hook, etc. There is also complete sample application online, which uses the Hookstate and the technique explained above.
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Why are Perl 5's function prototypes bad?
...nd to expect prototypes to provide a mechanism for checking that function calls are correct: that is, that they have the right number and type of arguments. Perl's prototypes are not well-suited for this task. It's the misuse that's bad. Perl's prototypes have a singular and very different purpose:
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Using boolean values in C
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@NoBody Using a smaller type can save on memory, but it might not make it any faster. Often, it's faster to use the processor's native word size instead of a smaller size as it could require the compiler to make bit shifts to align it properly...
jQuery: checking if the value of a field is null (empty)
...ype]').val().length != 0){}
If you want to check if the element exist at all, you should do that before calling val:
var $d = $('#person_data[document_type]');
if ($d.length != 0) {
if ($d.val().length != 0 ) {...}
}
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