Character Frequency Counter | Dataford Interview Questions

Given a string s, return a dictionary where each key is a character from the string and each value is the number of times that character appears. Count all characters exactly as they appear, including uppercase and lowercase letters, digits, punctuation, special characters, and whitespace.

Constraints

0 <= len(s) <= 10^5
s may contain letters, digits, punctuation, symbols, and whitespace
Character comparison is case-sensitive

Function Signature

def char_frequency(s):

Your question is Character Frequency Counter. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Constraints

0 <= len(s) <= 10^5
s may contain letters, digits, punctuation, symbols, and whitespace
Character comparison is case-sensitive

Function Signature

def char_frequency(s):

Your question is Character Frequency Counter. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.