Write your own len() in Python
The method len() returns the number of elements in the list or length of the string depending upon the argument you are passing.
How to implement without using len():
1. Take input and pass the string/list into a function which return its length. 2. Initialize a count variable to 0, this count variable count character in the string. 3. Run a loop till length if the string and increment count by 1. 4. When loop is completed return count.
Python implementation:
# Function which return length of string def findLength(string): # Initialize count to zero count = 0 # Counting character in a string for i in string: count+= 1 # Returning count return count # Driver code string = "geeksforgeeks"print(findLength(string)) |
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Output:
13
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