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JavaScript The Solution

Gal Parselany
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Gal Parselany
Full Stack JavaScript Techdegree Graduate 26,281 Points

My Solution

var num1 = prompt("Please type a number");
var num2 = prompt("Please type another number");
var message = "<h1>Math with the numbers " + num1 + " and " + num2 + "</h1>";

num1 = parseFloat(num1);
num2 = parseFloat(num2);

if((Number.isFinite(num1) && Number.isFinite(num2)) && (num1 !==0 && num2 !== 0)) {
  alert("Let's do some math!");
message += 
 `
   ${num1} + ${num2} = ${num1 + num2} <br>
   ${num1} * ${num2} = ${num1 * num2} <br>
   ${num1} / ${num2} = ${num1 / num2} <br>
   ${num1} - ${num2} = ${num1 - num2} 
 `;
    document.write(message);
} else {
  alert('Please insert two numbers, and dont use 0');
}

does it right to use the document.write inside the if statement?

Steven Parker
Steven Parker
229,982 Points

Code needs special formatting to look right in the forum. Take a look at these videos about Posting a Question, and this one on using Markdown formatting to preserve the code's appearance.

Click the little rectangle with the 3 dots to reveal the option to "Edit Question".

1 Answer

Steven Parker
Steven Parker
229,982 Points

The document.write is inside the conditional in the video also, only there the test (if) was for a bad number, but in this code the test is for a good number. Both approaches are equally valid.