Strings in Python [3]

Hello,

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71. Reverse Each Word in a String

python

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reversed_words = ' '.join(word[::-1] for word in "Hello World".split())  # 'olleH dlroW'

72. Find All Numeric Substrings

python

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import re
numeric_substrings = re.findall(r'\d+', "There are 123 apples and 456 oranges.")  # ['123', '456']

73. Capitalize the First Letter of Each Sentence

python

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text = "hello world. this is python."
capitalized_sentences = '. '.join(sentence.capitalize() for sentence in text.split('. '))  # 'Hello world. This is python.'

74. Check if String Contains Only Hexadecimal Characters

python

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is_hex = lambda s: all(char in "0123456789abcdefABCDEF" for char in s)
result = is_hex("1A3F")  # True

75. Extract Words Starting with a Specific Letter

python

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