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移除目标元素

js
var removeElement = function(nums, val) {
  // 双指针
  // [3,2,2,3] 3
  let k = 0
  for (let i = 0; i < nums.length; i++) {
    if(nums[i]!==val){
        nums[k++] = nums[i]
    }
  }
  return k
};

Released under the MIT License.