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Hunter Shaw
2,187 PointsI'm not sure why my code doesn't work, help?
I'm not really sure how the isNaN works. I'm almost positive this has to do with my program not working.
function getRandomNumber( lower, upper ) {
var random = Math.floor(Math.random() * (upper - lower + 1)) + lower;
if (isNaN(lower) || isNaN(upper)) {
throw new Error("Error, please provide a number...");
} else
return random;
}
document.write( getRandomNumber( 'nine', 24 ) + "<br>");
document.write( getRandomNumber( 1, 100 ) + "<br>");
document.write( getRandomNumber( 200, 'five hundred' ) + "<br>");
document.write( getRandomNumber( 1000, 20000 ) + "<br>");
document.write( getRandomNumber( 50, 100 ) + "<br>");
1 Answer
Steven Parker
229,644 PointsThe code seems to work fine. 
If you wanted to see them on the page instead, you could replace "throw new Error" with "return".
Aakash Srivastav
Full Stack JavaScript Techdegree Student 11,638 PointsHey Steven , Where and when is this "throw new Error" actually used?
Steven Parker
229,644 PointsWhen either of the provided arguments is not a number, the error is thrown.
Antonio De Rose
20,884 PointsAntonio De Rose
20,884 Pointsplease do the sanity check before doing the calculation
I do not know, why you say the code does not work, it does work for me, the program stops at the first instance, as that itself brings in an error, as put by you if you want to see a change, change the order