I have this array
[[11,12,13,14],[21,22,23,24],[31,32,33,34],[41],[43],[51]]
,
expected output like this: 11-14,21-24,31-34,41,43,51
>Solution :
We can do it via Array.map()
const data = [[11,12,13,14],[21,22,23,24],[31,32,33,34],[41],[43],[51]]
let result = data.map(d => {
if(d.length < 2){
return d[0]
}
return d.at(0) +' -' + d.at(-1)
})
console.log(result)