[WalterSear]

ES6

    const atLeastTwo = x => Math.max(2,x)

[leshow]

his is a function that returns a function, i.e. you'd need to call atLeastTwo(x)(); to get a result, yours is just a function. in es6 the equivalent thing to what he wrote would be:

    const atLeastTwo = x => () => Math.max(2, x);