Final answer:
To modify a web page to include JavaScript, follow these steps: linking an external JavaScript document, writing variable text conditional statements, redirect statements that display messages, and random statements that display time-based messages.
Step-by-step explanation:
To add JavaScript to an existing web page, you can follow these steps:
- Linking an External JavaScript Document: To link an external JavaScript document to the page, you can create a new JavaScript file (e.g., script.js) and then link it to the HTML page using the
- Conditional Statement Writing Variable Text: You can use a conditional statement in the linked JavaScript file to write variable text on the HTML page. For instance, the following code snippet demonstrates how to write variable text based on a condition:
var age = 25;
if (age >= 18) {
document.write("You are an adult.");
} else {
document.write("You are a minor.");
}
- Switch Statement Displaying a Message: A switch statement can be used in the JavaScript file to display a message based on certain conditions. Here’s an example of how you can implement a switch statement:
var userType = "Rasmussen";
switch (userType) {
case "Rasmussen":
document.write("Welcome, Rasmussen Students!");
break;
default:
document.write("Welcome!");
break;
}
- Random Statement Displaying Message Based on Time of Day: To display a message depending on the time of day, you can use JavaScript’s Date object along with conditional statements. The following code snippet illustrates how you can achieve this:
var time = new Date().getHours();
if (time < 12) {
document.write("Good morning!");
} else if (time < 18) {
document.write("Good afternoon!");
} else {
document.write("Good evening!");
}
By incorporating these elements into your existing web page, you can enhance its interactivity and provide dynamic content based on various conditions.