Given two strings, determine if they are anagrams of each other. Two strings are anagrams if they contain the same characters with the same frequencies, ignoring case and spaces. For null inputs, return false.
Examples:
Input: str1 = 'listen', str2 = 'silent'
Output: true
Explanation: Both strings contain the same letters with the same frequencies
Input: str1 = 'Hello', str2 = 'World'
Output: false
Explanation: Strings contain different letters
Input: str1 = 'Rail Safety', str2 = 'Fairy Tales'
Output: true
Explanation: When ignoring case and spaces, both contain the same letters with the same frequencies
Apex Code Editor
Welcome to Lightning Challenge!
How It Works
- • Write your solution in the code editor
- • Connect your Salesforce org to test
- • Submit to check if your solution passes
- • Use hints if you get stuck
Contest Alert
🏆 #CodeEveryDay July 2026
Contest runs July 1 - 31. Complete challenges to climb the leaderboard!
Only the 31 daily challenges shown during this contest count toward points. Earlier dailies don't carry over.