Get Programming with JavaScript - Listing 5.04

Get Programming with JavaScript - Listing 5.04

Listing 5.04 - Calling the same function with different arguments

var showMessage;

showMessage = function (message) {
    console.log("The message is: " + message);
};

showMessage("It's full of stars!");
showMessage("Hello to Jason Isaacs");
showMessage("Hello to Jason Isaacs and Stephen Fry");

Further Adventures

Listing 5.04 - Calling the same function with different arguments - Task 1

Change the showMessage function to display its prefixed text on a separate line to the message.

var showMessage;

showMessage = function (message) {
    console.log("The message is:");    // Display the prefix
    console.log(message);    // Display the message
};

showMessage("It's full of stars!");
showMessage("Hello to Jason Isaacs");
showMessage("Hello to Jason Isaacs and Stephen Fry");

You can also use the new-line escape sequence:

var showMessage;

showMessage = function (message) {
    console.log("The message is:\n" + message);    // Use a new-line character
};

showMessage("It's full of stars!");
showMessage("Hello to Jason Isaacs");
showMessage("Hello to Jason Isaacs and Stephen Fry");

Listing 5.04 - Calling the same function with different arguments - Task 2

Declare a myMessage variable and assign it a string value.

var showMessage;
var myMessage;    // Declare the variable

myMessage = "We choose to go.";    // Assign it a value

showMessage = function (message) {
    console.log("The message is:");
    console.log(message);
};

showMessage("It's full of stars!");
showMessage("Hello to Jason Isaacs");
showMessage("Hello to Jason Isaacs and Stephen Fry");

Listing 5.04 - Calling the same function with different arguments - Task 3

Call the showMessage function with myMessage as the argument.

var showMessage;
var myMessage;

myMessage = "We choose to go.";

showMessage = function (message) {
    console.log("The message is:");
    console.log(message);
};

showMessage("It's full of stars!");
showMessage("Hello to Jason Isaacs");
showMessage("Hello to Jason Isaacs and Stephen Fry");

showMessage(myMessage);    // Use myMessage as an argument