devrantUsers.map(user => `Hello ${user.userName}`).join(', ');

Hi!
I wanted to say hello with a line I write every day in some form.

I lurked about 2 months here and finally decided to create an account. Already feeling warm and cozy here :)

Hopefully, it does not lower my productivity to much, we have a project to deliver prior christmas...

Welcome :)

Sidenot: You don't need to make a join(','). The Array.prototype.toString already does that ;)

Yeah, I first wanted to .join('\n') but changed it to ', ' later.

Normally, I do not use the join at all, because the return element would be wrapped in some React tags and thus no string anymore.

Welcome to devRant

devrantUsers.map(u=>`Hello ${u.userName}`).join`, `

i just had to do some golfing...

const sayHello = compose(
join(),
map(compose(
concat('Hello '),
get('username')
))
);

sayHello(devrantUsers);