Some notes

Comparison of Python and JavaScript

split

return a sorted string

sort

sort array a = [3,4],[1,5](/fieldsfarmer/coding_problems/wiki/3,4],[1,5) | a.sort(key=lambda x: x[0]) | a.sort(function(i,j){return i[0]-j[0]})

~	Python	Java
string replace	a='123,abc'; b=re.sub(r'[^a-zA-Z]','',a) #'abc'	String b= a.replaceAll('[^a-zA-Z]',''); //'abc'