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![Spencer Renfro](https://secure.gravatar.com/avatar/290de00adbb10a59657d8efec59e6b36?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Spencer Renfro
Courses Plus Student 11,133 PointsStoring upper and lower numbers from user input
I am trying to store the lower number and the upper number from user input, but I am having a logic error. My code runs without error, it generates a number, but not within the range I have set.
var lowerNumber = window.prompt("Enter the lower range number for the random number generator"); var upperNumber = window.prompt("Enter the upper range number for the random number generator");
function getRandom(lowerNumber,upperNumber) {
return Math.floor(Math.random() * (upperNumber - lowerNumber + 1)) + lowerNumber; }
console.log(getRandom(lowerNumber,upperNumber));
I was also wanting to store the random number into a variable and show that but I also had syntax errors with that. For example, using this code in my function
const randomNumber = Math.floor(Math.random() * (upperNumber - lowerNumber + 1)) + lowerNumber; return randomNumber
console.log(Your random number is ${randomNumber}
);
1 Answer
![jb30](https://secure.gravatar.com/avatar/681668d7cc4c5486851384a0feddda37?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
jb30
44,806 Pointsvar lowerNumber = window.prompt("Enter the lower range number for the random number generator");
var upperNumber = window.prompt("Enter the upper range number for the random number generator");
Here, lowerNumber
and upperNumber
are both strings, rather than numbers. Try converting them to numbers before calling getRandom
, such as by using
lowerNumber = +lowerNumber;
upperNumber = +upperNumber;
To store the result of calling getRandom
in the variable randomNumber
,
const randomNumber = getRandom(lowerNumber, upperNumber);