// turn to lower/upper
string = string.upper()
string = string.lower()
// check if all letter are lower or upper
string.islower()
string.isupper()
str.lower()
str = 'heLLo WorLD'
print(str.lower())
# hello world
strin = "aBc"
print string.upper()
>> "ABC"
print string.lower()
>> "abc"
# string арга .lower() нь жижиг үсгээр хөрвүүлсэн бүх том үсэг бүхий мөрийг буцаана.
greeting = "Welcome To Chili's"
print(greeting.lower())
# Prints: welcome to chili's
startString = "TeST StrIng"
lowerCaseString = startString.lower()
print(lowerCaseString)
# Output -> "test string"
str1 = "HeLlO_wOrLd!"
str1.lower()
Output: 'hello_world!'
# String to Lowercase by Matthew Johnson
myStr = "LetS FiX ThiS."
print(myStr.lower())
#OUTPUT: "lets fix this."
# string object has the method .lower()
greet = 'Hello Bob'
zap = greet.lower()
print(zap) # Output: hello bob
# Remember this doesn't change the original string
# It only gives us a copy
print(greet) # Output: Hello Bob
print('Hi there'.lower()) # Output: hi there