algorithm/fizzBuzz.js at master · bcfchen/algorithm · GitHub

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/*
 * Write a program that outputs the string representation of numbers from 1 to n.
 *
 * But for multiples of three it should output “Fizz” instead of the number and for the multiples of five output  * “Buzz”. For numbers which are multiples of both three and five output “FizzBuzz”.
 *
 * Example:
 *
 * n = 15,
 *
 * Return:
 * [
 *     "1",
 *     "2",
 *     "Fizz",
 *     "4",
 *     "Buzz",
 *     "Fizz",
 *     "7",
 *     "8",
 *     "Fizz",
 *     "Buzz",
 *     "11",
 *     "Fizz",
 *     "13",
 *     "14",
 *     "FizzBuzz"
 * ]
*/

/**
 * @param {number} n
 * @return {string[]}
 */
var fizzBuzz = function(n) {
    let arr = [];
    for(let ii=1;ii<=n;ii++){
        let str = "";
        if (ii % 3 === 0){
            str += "Fizz";
        }

        if (ii % 5 === 0){
            str += "Buzz";
        }

        if (str.length === 0){
            str = ii.toString();
        }
        arr.push(str);
    }

    return arr;
};