freeCodeCamp/curriculum/challenges/english/08-coding-interview-prep/rosetta-code/general-fizzbuzz.english.md

title, id, challengeType

title	id	challengeType
General FizzBuzz	5a23c84252665b21eecc7e78	5

Description

Write a generalized version of FizzBuzz that works for any list of factors, along with their words. This is basically a "fizzbuzz" implementation where the rules of the game are supplied to the user. Create a function to implement this. The function should take two parameters. The first will be an array with the FizzBuzz rules. For example: [ [3,"Fizz"] , [5,"Buzz"] ]. This indcates that Fizz should be printed if the number is a multiple of 3 and Buzz if it is a multiple of 5. If it is a multiple of both then the strings should be concatenated in the order specified in the array. In this case, FizzBuzz if the number is a multiple of 3 and 5. The second parameter is the number for which the function should return a string as stated above.

Instructions

Tests

tests:
  - text: <code>genFizzBuzz</code> should be a function.
    testString: 'assert(typeof genFizzBuzz=="function","<code>genFizzBuzz</code> should be a function.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[0][0])+","+tests[0][1]+")</code> should return a type.
    testString: 'assert(typeof genFizzBuzz(tests[0][0],tests[0][1])=="string","<code>genFizzBuzz("+JSON.stringify(tests[0][0])+","+tests[0][1]+")</code> should return a type.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[0][0])+","+tests[0][1]+")</code> should return <code>""+results[0]+""</code>.
    testString: 'assert.equal(genFizzBuzz(tests[0][0],tests[0][1]),results[0],"<code>genFizzBuzz("+JSON.stringify(tests[0][0])+","+tests[0][1]+")</code> should return <code>""+results[0]+""</code>.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[1][0])+","+tests[1][1]+")</code> should return <code>""+results[1]+""</code>.
    testString: 'assert.equal(genFizzBuzz(tests[1][0],tests[1][1]),results[1],"<code>genFizzBuzz("+JSON.stringify(tests[1][0])+","+tests[1][1]+")</code> should return <code>""+results[1]+""</code>.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[2][0])+","+tests[2][1]+")</code> should return <code>""+results[2]+""</code>.
    testString: 'assert.equal(genFizzBuzz(tests[2][0],tests[2][1]),results[2],"<code>genFizzBuzz("+JSON.stringify(tests[2][0])+","+tests[2][1]+")</code> should return <code>""+results[2]+""</code>.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[3][0])+","+tests[3][1]+")</code> should return <code>""+results[3]+""</code>.
    testString: 'assert.equal(genFizzBuzz(tests[3][0],tests[3][1]),results[3],"<code>genFizzBuzz("+JSON.stringify(tests[3][0])+","+tests[3][1]+")</code> should return <code>""+results[3]+""</code>.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[4][0])+","+tests[4][1]+")</code> should return <code>""+results[4]+""</code>.
    testString: 'assert.equal(genFizzBuzz(tests[4][0],tests[4][1]),results[4],"<code>genFizzBuzz("+JSON.stringify(tests[4][0])+","+tests[4][1]+")</code> should return <code>""+results[4]+""</code>.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[5][0])+","+tests[5][1]+")</code> should return <code>""+results[5]+""</code>.
    testString: 'assert.equal(genFizzBuzz(tests[5][0],tests[5][1]),results[5],"<code>genFizzBuzz("+JSON.stringify(tests[5][0])+","+tests[5][1]+")</code> should return <code>""+results[5]+""</code>.");'
  - text: <code>genFizzBuzz("+JSON.stringify(tests[6][0])+","+tests[6][1]+")</code> should return <code>""+results[6]+""</code>.
    testString: 'assert.equal(genFizzBuzz(tests[6][0],tests[6][1]),results[6],"<code>genFizzBuzz("+JSON.stringify(tests[6][0])+","+tests[6][1]+")</code> should return <code>""+results[6]+""</code>.");'

Challenge Seed

function genFizzBuzz (rules, num) {
  // Good luck!
}

After Test

console.info('after the test');

Solution

function genFizzBuzz(rules, num) {
  let res=";
  rules.forEach(function (e) {
    if(num % e[0] == 0)
      res+=e[1];
  })

  if(res=="){
    res=num.toString();
  }

  return res;
}