SOURCE

let arr = generateNum()
//随机生成数据
function generateNum(max) {
    max = max == null ? 10000 : max
    let temp = []
    
    for(let i = 0; i < max; i++) {
        let limit = max > 10000 ? max : 10000
        let item = parseInt(Math.random()*limit)
        temp.push(item)
    }
    return temp
}
console.time('selectSort2')
for(let i = 0; i < arr.length - 1; i++) {
    let minIndex = i
    for(let j = i+1; j < arr.length; j++) {
        if (arr[minIndex] > arr[j]) {
            minIndex = j
        }
    }
    if(minIndex != i) {
       let temp = arr[i]
       arr[i] = arr[minIndex]
       arr[minIndex] = temp
    }
}
console.time('selectSort2')