44.diffReactions

Write a function named diffReactions that receives 2 parameters:

• an Object representing the reactions a blog post had yesterday - yesterdayReactions
• an Object representing the reactions that same blog post has today - todayReactions

Both parameters have the same structure:

• each key represents the ID of a user
• each value is an Array of strings, representing the reactions that user sent. Every reaction is one of the following: like, dislike, laugh, cry.

The function should return an Array of strings, describing what happened between yesterday and today. The strings should be in the following format:

• <user_id> reacted with <reaction> if this user added a new reaction today
• <user_id> removed their <reaction> if this user reacted yesterday but today removed that reaction

The order of the items in the returned Array is not important.