SOURCE

var a = [0, 1, 2, 0, 3, 4, 0, 1, 0, 0, 0]

/**
 * 将数字0移动到数组末尾
 * 在原数组操作
 */

function moveZero(arr) {
    const arrLength = arr.length;
    if (arrLength < 1) return arr
    let j = -1;
    for (let i = 0; i < arrLength; i++) {

        const cur = arr[i]
        if (cur === 0 && j === -1) {
            j = i
        }
        // 0在左边
        if (j < i && j >= 0 && arr[i] > 0) {
            let temp = arr[i]
            arr[i] = arr[j]
            arr[j] = temp
            j = i - 1
        }
    }
}
moveZero(a)
console.log(a)