The lottery system appears to be malfunctioning as critical information is absent

I attempted to create a mini lottery game where 6 unique random numbers are chosen from 49 options. However, my code seems to have some issues. Can you please help me identify the problem and correct it?

function getNumbers(){
    var numbers = [];
    var randomnumber;
  
    while(numbers.length < 6){
            randomnumber = Math.ceil(Math.random()*49)
            if(arr.indexOf(randomnumber) > -1) continue;
            numbers[numbers.length] = randomnumber;
    }

    numbers.sort(sortNumber);
  
    document.getElementById("Ausgabe").innerHTML = numbers;
}

function sortNumber(a,b) {
     return a - b;
}
javascriptrandom

Answer №1

if(arr.indexOf(randomnumber) > -1)
needs to be changed to numbers.indexOf(randomnumber)

Therefore, arr should be replaced by numbers

function getNumbers(){
    var numbers = [];
    var randomnumber;

    while(numbers.length < 6){
            randomnumber = Math.ceil(Math.random()*49)
            if(numbers.indexOf(randomnumber) > -1) continue;
            numbers[numbers.length] = randomnumber;
    }

    numbers.sort(sortNumber);

    document.getElementById("Ausgabe").innerHTML = numbers;
}

function sortNumber(a,b) {
    return a - b;
}

getNumbers();
<div id="Ausgabe" ></div>

Answer №2

This solution has proven effective for me. Make sure to utilize the numbers array instead of the arr variable.

HTML: 

<div id="output"></div>

JavaScript:

function generateNumbers(){
        var numbers = [];
        var randomNum;

    while(numbers.length < 6){
            randomNum = Math.ceil(Math.random()*49)
            if(numbers.indexOf(randomNum) > -1) continue;
            numbers[numbers.length] = randomNum;
    }

    numbers.sort(sortNumbers);

    document.getElementById("output").innerHTML = numbers;
}

function sortNumbers(a,b) {
        return a - b;
}

Answer №3

The other participants seem to have overlooked a significant issue. It appears that you neglected to invoke the function. Haha.

Another mistake is using "arr" instead of "numbers" in the if statement.

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