Odpowiedź :
const tab = [
"xloremipsumdolor",
"kloremipsum",
"aloremipsumdol",
"blor",
"cloremipsu",
"gloremip",
]
tab.sort((a, b) => a.length - b.length)
console.log(tab)
const sum = tab.reduce((acc, val) => acc + val.length, 0)
console.log(sum)
const tab = [
"xloremipsumdolor",
"kloremipsum",
"aloremipsumdol",
"blor",
"cloremipsu",
"gloremip",
]
tab.sort((a, b) => a.length - b.length)
console.log(tab)
const sum = tab.reduce((acc, val) => acc + val.length, 0)
console.log(sum)