27-remove-element

class Solution {
  public int removeElement(int[] nums, int val) {
    int count=0;
    for(int i=0;i<nums.length;i++){
      if(nums[i]!=val){
        nums[count]=nums[i];
        count++;
      }
    }
    return count;
  }
}

/**
 * @param {number[]} nums
 * @param {number} val
 * @return {number}
 */
var removeElement = function(nums, val) {
    let j = 0;
    for( let n of nums ){
       if( n !== val ){
            nums[j++] = n;
       }
    }

    return j;
};