Lab03/exercise1.html at main · mauvepark/Lab03 · GitHub

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Lab3 -- Exercise 1</title>
    </head>
        <body>
            <h1>JavaScript Lab Exercise 1</h1>
            <script>
            // exercise 1A
            try {
                var name1 = "John";
                let name2 = "Jane";
                const name3 = "Alice";

                name2 = "Joe";
                name3 = "Bob";
            } catch (error) {
                console.error("Error: cannot reassign const");
            }

            // exercise 1B
            let string1 = "Hello, World!"
            let string2 = "JavaScript is fun!"

            console.log(string1.length);
            console.log(string1, string2);
            let string3 = "JavaScript is awesome!";

            console.log(string3);

            // exercise 1C
            let name = "Alice";
            let age = 25;
            console.log(`My name is ${name} and I am ${age} years old`);

            // exercise 1D
            const students = ["Alice", "Tom", "Charlie"];
            const ages = [19, 21, 20];

            for (let i = 0; i < students.length; i++) {
                console.log(`My name is ${students[i]} and I am ${ages[i]} years old`);
            }

            // exercise 1E
            let date = new Date();
            console.log("en-CA:", date.toLocaleDateString("en-CA"));
            console.log("en-US:", date.toLocaleDateString("en-US"));

            console.log("Year:", date.getFullYear());
            console.log("Month:", date.getMonth());
            console.log("Day of the week:", date.toLocaleDateString("en-US", {weekday: "long"}));

            if (date.getMonth() === 11 || date.getMonth() <= 1) {
                console.log("It's winter!");
            } else if (date.getMonth() >= 2 && date.getMonth() <= 4) {
                console.log("It's spring!");
            } else if (date.getMonth() >= 5 && date.getMonth() <= 7) {
                console.log("It's summer!");
            } else {
                console.log("It's fall!");
            }

            </script>
        </body>
</html>