13.15 The string type
append()
The append() method appends the string to the end of a string.
beginsWith()
The beginsWith() method returns a boolean indicating whether a string begins with the substring .
endsWith()
The endsWith() method returns a boolean indicating whether a string ends with the substring .
find()
The find() method returns the position of the first occurrence of in a string, or if it is not found.
findAll()
The findAll() method returns a list of the positions where the substring occurs in a string.
isalnum()
The isalnum() method returns a boolean indicating whether all of the characters of a string are alphanumeric.
isalpha()
The isalpha() method returns a boolean indicating whether all of the characters of a string are alphabetic.
isdigit()
The isdigit() method returns a boolean indicating whether all of the characters of a string are numeric.
len()
The len() method returns the length of a string.
lower()
The lower() method converts a string to lowercase.
lstrip()
The lstrip() method strips whitespace off the beginning of a string.
split()
The split() method returns a list of all the whitespace-separated words in a string.
splitOn(...)
The splitOn(...) method splits a string whenever it encounters any of the substrings supplied as arguments, and returns a list of the split string segments.
strip()
The strip() method strips whitespace off the beginning and end of a string.
rstrip()
The rstrip() method strips whitespace off the end of a string.
upper()
The upper() method converts a string to uppercase.