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Read a file one line at a time in node.js?
... first.
– crowjonah
Sep 6 '13 at 19:05
53
...
How do I use a file grep comparison inside a bash if/else statement?
...grep:
Exit status is 0 if any line was selected, 1 otherwise;
if any error occurs and -q was not given, the exit status is 2.
if grep --quiet MYSQL_ROLE=master /etc/aws/hosts.conf; then
echo exists
else
echo not found
fi
You may want to use a more specific regex, such as ^MYSQL_ROLE=ma...
What is the difference between `sorted(list)` vs `list.sort()`?
list.sort() sorts the list and replaces the original list, whereas sorted(list) returns a sorted copy of the list, without changing the original list.
...
How to sort two lists (which reference each other) in the exact same way
...
I get an error running your example: TypeError: only integer arrays with one element can be converted to an index (Python 2.7.6, numpy 1.8.2). To fix it, list1 and list2 must be declared as numpy arrays.
– BenB
...
Is HTML considered a programming language? [closed]
...t HR though.
– Ed S.
Oct 1 '08 at 4:05
41
@freespace - by that definition, nearly everything is a...
Unix shell script find out which directory the script file resides?
...ng different on OS X (Lion) and possibly BSD. stackoverflow.com/questions/1055671/…
– Ergwun
Jun 29 '12 at 1:33
9
...
Creating an empty list in Python
...ny list, and if I append something else, e.g.
t = t.append(2)
I get the error "'NoneType' object has no attribute 'append'". If, however, I create the list by
t = list() # explicit instantiation
then it works fine.
sh...
Truncate number to two decimal places without rounding
...h that javascript would represent in scientific notation. toFixed(0.0000000052, 2) yields '5.2'. This can be fixed by using return num.toFixed(fixed+1).match(re)[0]; Notice I'm using toFixed with one decimal place above the target to avoid rounding, then running your regex match
...
What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]
...of ( y - U(x,aa) )^{2}
Let me explain why, if you select aa such that the error is minimized, then for a rare set of values you have perfect fit. However, since they are rare the average is never 0. You want to minimize the second although you have a discrete approximation to D. And keep in mind th...
Building and running app via Gradle and Android Studio is slower than via Eclipse
...derstand
– younes0
Dec 11 '14 at 12:05
1
Imaging, you have added library like this one: github.co...