Remove9.js

// Source : https://leetcode.com/problems/remove-9
// Author : Dean Shi
// Date   : 2017-08-14

/***************************************************************************************
 *
 * Start from integer 1, remove any integer that contains 9 such as 9, 19, 29...
 *
 * So now, you will have a new integer sequence: 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, ...
 *
 * Given a positive integer n, you need to return the n-th integer after removing. Note
 * that 1 will be the first integer.
 *
 * Example 1:
 *
 * Input: 9
 * Output: 10
 *
 *  Hint: n will not exceed 9 x 10^8.
 *
 *
 ***************************************************************************************/

/**
 * @param {number} n
 * @return {number}
 */
var newInteger = function(n) {
    return +(n.toString(9))
};