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How to use if - else structure in a batch file?
...ut I couldn't use "if - else" blocks safely so these parts of my programme doesn't work. How can I do make these parts run? Thank you.
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UUID max character length
...ID'S generated which are longer than this - up to 60 characters in length.
Does anyone know a suitable max char length for UUID??
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ValueError: math domain error
...ror: math domain error
Without knowing what your newtonRaphson2 function does, I'm not sure I can guess where the invalid x[2] value is coming from, but hopefully this will lead you on the right track.
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How to append multiple values to a list in Python
... was the case for Python 3 in '17, it is no longer the case - Python 3.7.7 does exactly what poke described.
– Post169
May 8 at 16:09
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How do you perform a left outer join using linq extension methods
... This is actually not nearly as crazy as it seems. Basically GroupJoin does the left outer join, the SelectMany part is only needed depending on what you want to select.
– George Mauer
Nov 16 '14 at 16:36
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MySQL select with CONCAT condition
...ing more attention. It allows the direct use of the virtual column name. Does the having clause have more overhead?
– Paul
Mar 18 '14 at 17:11
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Real world example about how to use property feature in python?
...lass to be the same as with instance variables. So code outside the class does not need to be changed if you add a property, or have a simple instance variable.
So unlike most Object Oriented languages, for your simple example you can use the instance variable instead of 'getters' and 'setters' th...
What is this date format? 2011-08-12T20:17:46.384Z
...a.time functionality not originally built into Android.
If the desugaring does not offer what you need, the ThreeTenABP project adapts ThreeTen-Backport (mentioned above) to Android. See How to use ThreeTenABP….
sha...
Unzip a file with php
...o "Zip exists and successfully extracted";
}
else {
echo "This zip file does not exists";
}
?>
Source: How to unzip or extract zip files in PHP?
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Index on multiple columns in Ruby on Rails
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The order does matter in indexing.
Put the most selective field first, i.e. the field that narrows down the number of rows fastest.
The index will only be used insofar as you use its columns in sequence starting at the beginning. i.e...