Combine two maps into a single map. If a key exists in both maps, use the value from the second map. Return the merged map containing all key-value pairs.
Examples:
Input: map1 = {'a' => 'apple', 'b' => 'banana'}, map2 = {'c' => 'cherry', 'd' => 'date'}
Output: {'a' => 'apple', 'b' => 'banana', 'c' => 'cherry', 'd' => 'date'}
Explanation: No overlapping keys, all key-value pairs are combined
Input: map1 = {'a' => 'apple', 'b' => 'banana'}, map2 = {'b' => 'blueberry', 'c' => 'cherry'}
Output: {'a' => 'apple', 'b' => 'blueberry', 'c' => 'cherry'}
Explanation: Key 'b' exists in both maps, value from map2 ('blueberry') is used
Input: map1 = {}, map2 = {'a' => 'apple'}
Output: {'a' => 'apple'}
Explanation: First map is empty, result contains only key-value pairs from second map
Welcome to Lightning Challenge!
Create an Account
Sign up to track your progress, earn points, and compete with others. Your solutions will be saved automatically.
Create accountHow 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 Contest
Two ways to win a free Salesforce certification voucher:
- The #1 ranked player on our #CodeEveryDay leaderboard by June 28th
- Complete challenges to enter our random drawing! Each challenge you complete gives you an additional entry, increasing your chances to win.
Contest runs June 16-28. Additional prizes available for other top leaderboard positions. Track your position and compete for prizes!
Points are only calculated for questions created and completed during the contest period. If you previously won, you are not eligible to win the certification voucher again.