today I have a challenge for you
Here is the code
const a = await fetch('https://jsonplaceholder.typicode.com/users') .then(response => response.json()) .then(json => json.sort((a, b) => a.username.localeCompare(b.username) .map(a => a.test = "yay")) .then(console.log)
Hope you will all have fun!
NOTE: there are multiple solutions, the cleanest one will have honour and fame.