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Data Science Interview Challenge

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Challenge 2: String Manipulation

String manipulation in Python is a fundamental skill every programmer should master. Its significance includes:

  • Precision and Efficiency: String manipulation techniques allow for accurate data extraction and transformation . With built-in methods like split() , replace() , and find() , you can easily extract, replace, or locate substrings in a string .

  • Versatility: Strings are ubiquitous in Python, from file handling to data representation. Properly managing them is crucial to diverse applications .

  • Data Cleaning: In Data Science, raw data often contains unwanted characters or irregularities. String manipulation is essential to prepare and clean this data for analysis.

Thus, mastering string manipulation is paramount for efficient data handling and programming tasks.

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Given a string, write a Python function to reverse every word in the string.

  1. Split the string.
  2. Reverse every word.
  3. Join the list of words.

Løsning

def reverse_words(string):
words = string.split(' ') # 1. Split the string
reversed_words = [word[::-1] for word in words] # 2. Reverse every word
return ' '.join(reversed_words) # 3. Join the list of words

print(reverse_words("olleH dlroW"))

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Sektion 1. Kapitel 3
def reverse_words(string):
words = string.___ # 1. Split the string
reversed_words = [word[___] for word in words] # 2. Reverse every word
return ___(reversed_words) # 3. Join the list of words

print(reverse_words("olleH dlroW"))

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