I would write this in js
const digitalRoot = (num)=>{ return num < 10 ? num:digitalRoot([...(num+"")].reduce((a,b)=>(+a)+(+b))) }
Super elegant!
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I would write this in js
const digitalRoot = (num)=>{return num < 10 ? num:digitalRoot([...(num+"")].reduce((a,b)=>(+a)+(+b)))
}
Super elegant!