Question

Consider the following code:

Which code properly supplies the alert with the sum of the two numbers?

Answer 1

To sum two numbers and display the result with an alert in JavaScript, define two variables, calculate the sum, and pass the result to the alert function. The principle of commutativity ensures that the order of addition does not affect the result.

Step-by-step explanation:

The student's question is related to a piece of code that aims to alert the user with the sum of two numbers. In programming, particularly JavaScript, adding two numbers and supplying the result to an alert function can be done by declaring two variables for the numbers, summing them up, and then passing the result to the alert() function.

An example of proper code to accomplish this task is as follows:

var number1 = 2;
var number2 = 3;
var sum = number1 + number2;
alert(sum);

This code defines two variables, number1 and number2, assigns them values, and then calculates the sum by using the addition operator (+). The final line uses the alert() function to display the sum to the user.

The principle of commutativity in mathematics states that the order of the operands does not affect the sum, meaning that 2 + 3 is equal to 3 + 2. This is also true in most programming languages when dealing with numbers.