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Start your free trialCarlton Nunes Desouza
13,447 PointsMy solution with comments
/*
Simple script to display some
math on the html page with numbers
from user input.
*/
alert("Let's do some math!");
// store prompt input as number type using +
const num1 = +prompt("Enter first number");
const num2 = +prompt("Enter second number");
// checks that variables are valid numbers, and num2 is not 0
if ( isNaN(num1) || isNaN(num2) || num2 === 0 ) {
// if not valid, alert user and do not continue block
alert("Invalid input, please reload and try again.");
// if valid continue to else statement
} else {
// create message using multiline template literals
const message = `
<h1>Math with the numbers ${num1} and ${num2}</h1>
${num1} + ${num2} = ${num1 + num2}
<br>
${num1} * ${num2} = ${num1 * num2}
<br>
${num1} / ${num2} = ${num1 / num2}
<br>
${num1} - ${num2} = ${num1 - num2}
`;
// write message to document
document.write(message);
};
notarobot
Full Stack JavaScript Techdegree Student 3,346 Pointsnotarobot
Full Stack JavaScript Techdegree Student 3,346 PointsThis is the cleanest solution i've seen to this problem. Great job!