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Jessaly Sinchico
1,485 PointsHaving trouble. I'm not sure if I used isNaN correctly.
// declare program variables var num1; var num2; var message; // announce the program alert("Let's do some math!");
// collect numeric input num1 = prompt("Please type a number"); num1 = parseFloat(num1); num2 = prompt("Please type another number"); num2 = parseFloat(num2);
if (num2 === 0); { alert("The second number is 0. You can't divide by zero. Reload and try again."); } else if ( isNaN(num1) || isNaN(num2) ) { alert("At least one of the values you typed is not a number. Reload and try again."); } else {
// build an HTML message message = "<h1>Math with the numbers " + num1 + " and " + num2 + "</h1>"; message += num1 + " + " + num2 + " = " + (num1 + num2); message += "<br>"; message += num1 + " * " + num2 + " = " + (num1 * num2); message += "<br>"; message += num1 + " / " + num2 + " = " + (num1 / num2); message += "<br>"; message += num1 + " - " + num2 + " = " + (num1 - num2);
// write message to web page document.write(message); }
2 Answers
Steven Parker
231,007 PointsThere seems to be a stray semicolon in the first if statement:
if (num2 === 0); {
// ^
// that shouldn't be there
Jessaly Sinchico
1,485 PointsOMG! Thank you, I was able to fix the problem and it worked!