Please give me feedback on code

My code is :

// 2. In this JavaScript file, add a prompt dialog to capture input from the user and store it in a variable var inputUser1 = prompt("Type in your first name");

// 3. Add a second a prompt dialog to capture input from the user and store it in a second variable var inputUser2 = prompt("Type in your last name");

// 4. Create a third variable and which combines an uppercase version values in the two other variables separated by a space. For example, if the first two variables contain "sally" and "forth", this third variable should contain the string value "SALLY FORTH"

var totalInput = inputUser1.toUpperCase() + ' ' + inputUser2.toUpperCase(); console.log(totalInput);

// 5. Create a fourth variable to store a number. The number should be the total number of characters in the third variable.

var inputUser3 = totalInput.length; console.log(inputUser3);

// 6. Add an alert dialog box that says "The string '[insert value of third variable here]' is X number of characters long." For example, if the third variable contained the string "SALLY FORTH" then the alert dialog should says "The string 'SALLY FORTH' is 11 characters long."

alert("The string " + totalInput + " is " + inputUser3 + ' ' + "number of characters long");

I tried to make the code as simple and following the methods we learnt so far in the JavaScript course.

An improvement I was thinking after finishing the code challenge, was instead of using totalInput to use inputUser1 += .... method

Please give me your feedback!

Regards John