选择排序

let swap = (array, i, j) => {
let temp = array[i]
array[i] = array[j]
array[j] = temp
}

let minIndex = (numbers) => {
let index = 0
for(let i=1; i<numbers.length; i++){
if(numbers[i] < numbers[index]){
index = i}
  }
return index
}

let sort = (numbers) => {
for(let i=0; i< numbers.length -1; i++){
let index = minIndex(numbers.slice(i))+ i
if(index!==i){swap(numbers, index, i)}
}
return numbers
}