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What exactly is Hot Module Replacement in Webpack?
...ompiler (wrap it in if(module.hot)).
Caveats
It's experimental and not tested so well.
Expect some bugs.
Theoretically usable in production, but it may be too early to use it for something serious.
The module IDs need to be tracked between compilations so you need to store them (records).
The op...
Difference between if () { } and if () : endif;
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ERROR: <?php if(TRUE){?> test <?php }?> <?php else{ ?> test2 <?php }?>
– Yousha Aleayoub
May 6 '17 at 16:01
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Node.js check if file exists
...{
console.log('Found file');
}
The API doc says how existsSync work:
Test whether or not the given path exists by checking with the file system.
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How do I detect if I am in release or debug mode?
... DEBUG to true, it should work. If you are seeing this in one of the 1.3.0 test releases, or if you have a reproducible test case for 1.2.2, please file an issue. I do not see any outstanding issues reporting this problem.
– CommonsWare
Jul 12 '15 at 23:39
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Installing vim with ruby support (+ruby)
...hg/ vim
cd vim
./configure --enable-rubyinterp
make
sudo make install
To test if things look fancy:
vim --version | grep ruby
Should return something like:
-python3 +quickfix +reltime -rightleft +ruby +scrollbind +signs +smartindent
Ruby should have plus now. Another trick to test it - enter...
In Bash, how to add “Are you sure [Y/n]” to any command or alias?
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Actually it should be [y/N] and not [Y/n] for the current test.
– Simon A. Eugster
Aug 1 '12 at 11:58
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How can I check if my python object is a number? [duplicate]
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Test if your variable is an instance of numbers.Number:
>>> import numbers
>>> import decimal
>>> [isinstance(x, numbers.Number) for x in (0, 0.0, 0j, decimal.Decimal(0))]
[True, True, True, True]
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Comparing date ranges
...' <= end) and ('1983-06-18' >= start)
i.e. check the start of your test range is before the end of the database range, and that the end of your test range is after or on the start of the database range.
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How can I reverse the order of lines in a file?
...ine, the first 2 lines may be conjoined as 1 line. echo -n "abc\ndee" > test; tac test.
– CMCDragonkai
Apr 11 '17 at 12:58
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What can be the reasons of connection refused errors?
...rewalls and that the port is open, use telnet to connect to the ip/port to test connectivity. This removes any potential issues from your application.
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