PYTHON ADVANCED - 05: STRINGS

 IN THIS TUTORIAL, WE WILL SEE STRINGS:

NOTE: TRY ALL METHODS/CODES WHICH ARE COMMENTED OUT.

#strings: ordered,immutable, text representation

# mystring = "I'm a Programmer" #"hello universe"

# substring = mystring[0::2]  #--> slicing operator

# print(substring)

# print(mystring[0])

# name = "Tom"

# sentence = name + ", " + mystring

# print(sentence)

# for i  in mystring:

#     print(i)

# if "a" in mystring:

#     print('yes')

   

# else:

#     print("no")    

# my_string = "hello world"

# my_string = my_string.strip()  #-->removes wide spaces

# print(my_string)

# print(my_string.upper())

# print(my_string.lower())

# print(my_string.startswith('hello'))

# print(my_string.endswith("world"))

# print(my_string.find('o'))

# print(my_string.find('pp'))

# print(my_string.count("l"))

# print(my_string.replace("world", "Universe"))

# string = "how are you doing"  #-->  converting strings to list

# mylist = string.split()

# print(mylist)

# newstring = ' '.join(mylist)  #--> converting list to string

# print(newstring)

# from timeit import default_timer as timer

# list = ["A"] * 100000

# # print(list)

# #bad way

# start = timer()

# mystring = ''

# for i in list:

#     mystring += i

# stop = timer()    

# print(stop - start)

# #good way

# start = timer()

# mystring = " ".join(list)

# stop = timer()

# print(stop - start)

 #   OLD METHOD OF FORMATTING.........

# var = "SHAYAN"

# mystring = "the variable  is {}".format(var)

# print(mystring)

# var = 2.253411345

# mystring = "the variable  is {:.2f}".format(var)

# print(mystring)

# var =2.323454524

# var2 = 756

# my_String = f"The variable is {var*3} and {var2}"

# print(my_String)