split:
# we use split method on a str
# to remove whitespaces at begining and end of str use s.strip() first
s="ab.1e.1e3"
w = s.split('.1')
// w is ["ab","e","e3"]
# IMP see below to see how split method actually splits wrt passed substring
print("ap1oo11rv1".split("1"))
// prints ['ap', 'oo', '', 'rv', '']
// use help(str.split) in your python IDE to know split in detail.
// if .split() is called then split is done wrt successive whitespaces.
ex.1 print(" a pp p ".split())
//prints ['a', 'pp', 'p']
// .split(' ') is different
ex.2 print(" a pp p ".split())
//prints ['', '', '', '', '', 'a', '', '', 'pp', '', '', 'p', '']
join:
w=["as","3e","1"]
a='vf'.join(w)
// w neccessarily needs to be a list of strings.
print(a)
//displays string asvf3evf1
# CONCLUSIONS FROM ABOVE:
- both split and join undo the effect of each other
- we can write directly in 1 line as well:
print("QR".join("ap1oo1rv1".split("1")))
// prints apQRooQRrvQR