问题 ​​https://leetcode-cn.com/problems/remove-element/​​

练习使用JavaScript解答

/**
 * @param {number[]} nums
 * @param {number} val
 * @return {number}
 */
var removeElement = function(nums, val) {
    var i,j;
    for(i=0,j=0;i<nums.length;++i)
        if(nums[i] != val)
            nums[j++] = nums[i];
    return j;
};