Hey Google Bard, please write a Salesforce Apex Trigger

Functional Test Case 

Given An existing Contact 

When A user updates an existing Contact email address 

Then Timestamp a field on the Contact record, Email_Updated_Date__c, with the current date/time 

Test Driven Development 

Bard Prompt 

Bard Prompt Results

Unit Test Results

Resources: https://bard.google.com/