Get Programming with JavaScript - Listing 4.07

Get Programming with JavaScript - Listing 4.07

Listing 4.07 - Using the findTotal function to display a calculation

var number1 = 1000;
var number2 = 66;
var result;
var findTotal;

findTotal = function () {
    result = number1 + number2;
};

findTotal();

console.log(number1 + " + " + number2 + " = " + result);

Further Adventures

Listing 4.07 - Using the findTotal function to display a calculation - Task 1

Change number1 and number2 and run the program.

var number1 = 100;    // Change number1
var number2 = 6;      // Change number2
var result;
var findTotal;

findTotal = function () {
    result = number1 + number2;
};

findTotal();

console.log(number1 + " + " + number2 + " = " + result);

Listing 4.07 - Using the findTotal function to display a calculation - Task 2

Add a third variable, number3, and assign it a value.

var number1 = 100;
var number2 = 6;
var number3 = 50;    // A third variable and value
var result;
var findTotal;

findTotal = function () {
    result = number1 + number2;
};

findTotal();

console.log(number1 + " + " + number2 + " = " + result);

Listing 4.07 - Using the findTotal function to display a calculation - Task 3

Update the findTotal function to add the three numbers.

var number1 = 100;
var number2 = 6;
var number3 = 50;
var result;
var findTotal;

findTotal = function () {
    result = number1 + number2 + number3;    // Add the three numbers
};

findTotal();

console.log(number1 + " + " + number2 + " = " + result);

Listing 4.07 - Using the findTotal function to display a calculation - Task 4

Update the console.log line to show the new calculation.

var number1 = 100;
var number2 = 6;
var number3 = 50;
var result;
var findTotal;

findTotal = function () {
    result = number1 + number2 + number3;
};

findTotal();

// Update console.log
console.log(number1 + " + " + number2 + " + " + number3 + " = " + result);