Math.max()
will get the highest number in the array
Math.min()
will get the lowest number in the array
...arr will copy all the content of the array passed
function sumAllBetween(arr){
let highNum = Math.max(...arr)
let lowNum = Math.min(...arr)
let arrayBetween = []
for(let i = lowNum; i <= highNum; i++){
arrayBetween.push(i)
}
return arrayBetween
}
console.log([9, 1])
This code will return
[
1,
2,
3,
4,
5,
6,
7,
8,
9
]
