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Convert a String into a Camel Case Format

Certification: Intermediate Level Accuracy: 83.33% Submissions: 18 Points: 5

Write a Python function to convert a given string into camel case format.

Example 1
    
  
  • Input: s = "hello_world"
    • 
  
  • Output: "helloWorld"
    • 
  
  • Explanation: 
      
    
    • Step 1: Split the string "hello_world" by underscore character, resulting in ["hello", "world"].
      • 
    
    • Step 2: Keep the first word "hello" as is (lowercase).
      • 
    
    • Step 3: Capitalize the first letter of the remaining words: "world" becomes "World".
      • 
    
    • Step 4: Join all words together: "hello" + "World" = "helloWorld".
      • 
    
    • Step 5: Return the camel case string "helloWorld".
      • 
  
    •
Example 2
    
  
  • Input: s = "this_is_a_test"
    • 
  
  • Output: "thisIsATest"
    • 
  
  • Explanation: 
      
    
    • Step 1: Split the string "this_is_a_test" by underscore character, resulting in ["this", "is", "a", "test"].
      • 
    
    • Step 2: Keep the first word "this" as is (lowercase).
      • 
    
    • Step 3: Capitalize the first letter of the remaining words: "is" becomes "Is", "a" becomes "A", "test" becomes "Test".
      • 
    
    • Step 4: Join all words together: "this" + "Is" + "A" + "Test" = "thisIsATest".
      • 
    
    • Step 5: Return the camel case string "thisIsATest".
      • 
  
    •
Constraints
    
  
  • 1 <= len(string) <= 1000
    • 
  
  • Time Complexity: O(n) where n is the length of the string
    • 
  
  • Space Complexity: O(n)
    •
StringsFunctions / MethodsDeloitteSnowflake
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Hint
Solution

Solution Hints

    
  
  • Split the string by underscores.
    • 
  
  • Capitalize the first letter of each word except the first word.
    • 
  
  • Join the words together without spaces.
    •

Steps to solve by this approach:

 Step 1: Split the input string by underscores to create a list of words
 
 Step 2: Take the first word as-is (lowercase) for the start of the camelCase string
 
 Step 3: Iterate through the remaining words (from index 1 onwards)
 
 Step 4: For each word, capitalize its first letter and append to the result
 
 Step 5: Join all the transformed words to form the final camelCase string
 
 Step 6: Return the camelCase result
 
 Step 7: Example transformation: "hello_world" becomes "helloWorld"

Submitted Code :