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# Author: OMKAR PATHAK

import numpy as np

abc = ['abc']

xyz = ['xyz']

# string concatenation

print(np.char.add(abc, xyz)) # ['abcxyz']

print(np.char.add(abc, 'pqr')) # ['abcpqr']

# string multiplication

print(np.char.multiply(abc, 3)) # ['abcabcabc']

# numpy.char.center: This function returns an array of the required width so that the input string is

# centered and padded on the left and right with fillchar.

print(np.char.center(abc, 20, fillchar = '*')) # ['********abc*********']

# numpy.char.capitalize(): This function returns the copy of the string with the first letter capitalized.

print(np.char.capitalize('hello world')) # Hello world

# numpy.char.title(): This function returns a title cased version of the input string with the first letter

# of each word capitalized.

print(np.char.title('hello how are you?')) # Hello How Are You?

# numpy.char.lower(): This function returns an array with elements converted to lowercase. It calls

# str.lower for each element.

print(np.char.lower(['HELLO','WORLD'])) # ['hello' 'world']

# numpy.char.upper(): This function calls str.upper function on each element in an array to return

# the uppercase array elements.

print(np.char.upper('hello')) # HELLO

# numpy.char.split(): This function returns a list of words in the input string. By default, a whitespace

# is used as a separator

print(np.char.split('Omkar Pathak')) # ['Omkar', 'Pathak']

print(np.char.split('2017-02-11', sep='-')) # ['2017', '02', '11']

# numpy.char.join(): This method returns a string in which the individual characters are joined by

# separator character specified.

print(np.char.join(':','dmy')) # d:m:y