SIT120-Task1.2P/HTML FIle at main · liammcknightt/SIT120-Task1.2P · GitHub

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<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title>
        Task 1.2P
    </title>
    <link rel="stylesheet" type="text/css" href="StyleSheet1.css" />
    <style>
        body {
            background-color: white;
        }

        h1 {
            color: black;
            text-align: center;
            font-size: 40px;
        }
        h2{
            color: black;
            text-align: center;
            font-size: 30px;
        }
        h3 {
            font-family: Verdana;
            font-size: 20px;
            text-align: left;
            color: cornflowerblue;
        }
    </style>
</head>

<body>

    <!--Main-content section from external css file-->
    <section id="main-content">
        <h1>JavaScript Concepts</h1>
        <h2>This webpage implements various JavaScript Concepts</h2>

        <h3>String Methods</h3>
        <p>The length of the string "Test" is:</p>
        <p id="demo1"></p>
        <script>
            let text1 = "Test";
            document.getElementById("demo1").innerHTML = text1.length;
        </script>

        <hr />

        <p>Use the button to test the replace string method:</p>

        <button onclick="replaceFunction()">Button</button>

        <p id="demo2">Test</p>

        <script>
            function replaceFunction() {
                let text2 = document.getElementById("demo2").innerHTML;
                document.getElementById("demo2").innerHTML =
                    text2.replace("Test", "Success");
            }
        </script>

        <hr />

        <p>Using replaceAll to replace "C/cats" with "D/dogs"</p>

        <p id="demo3"></p>

        <script>
            let text3 = "I love cats. Cats are very easy to love. Cats are very popular."
            text3 = text3.replaceAll("Cats", "Dogs");
            text3 = text3.replaceAll("cats", "dogs");

            document.getElementById("demo3").innerHTML = text3;
        </script>

        <hr />

        <button onclick="toUpperCaseFunction()">To Upper Case</button>
        <button onclick="toLowerCaseFunction()">To Lower Case</button>

        <p id="demo4">TeSt</p>

        <script>
            function toUpperCaseFunction() {
                let text4 = document.getElementById("demo4").innerHTML;
                document.getElementById("demo4").innerHTML =
                    text4.toUpperCase();
            }
            function toLowerCaseFunction() {
                let text4 = document.getElementById("demo4").innerHTML;
                document.getElementById("demo4").innerHTML =
                    text4.toLowerCase();
            }
        </script>

        <h3>Number Methods</h3>
        <p>The toString() method converts a number to a string.</p>

        <p id="demo5"></p>

        <script>
            let x = 123456;
            document.getElementById("demo5").innerHTML =
                x.toString();
        </script>

        <hr />

        <p>The toFixed() method rounds a number to a given number of digits.</p>
        <p>In this case we will round to 2 decimal places.</p>

        <p id="demo6"></p>

        <script>
            let y = 9.656;
            document.getElementById("demo6").innerHTML =
                y.toFixed(2);
        </script>

        <hr />

        <p>The isInteger() method returns true if the argument is an integer.</p>
        <p>Otherwise it returns false.</p>
        <p>In this case we have tested numbers 10 and 10.5</p>

        <p id="demo7"></p>

        <script>
            document.getElementById("demo7").innerHTML =
                Number.isInteger(10) + "<br>" + Number.isInteger(10.5);
        </script>

        <hr />

        <p>The toPrecision() method returns a string, with a number written with a specified length:</p>
        <p>In this case we have specified length 4.</p>

        <p id="demo8"></p>

        <script>
            let z = 9.656;
            document.getElementById("demo8").innerHTML =
                z.toPrecision(4);
        </script>

        <hr />

        <p>The valueOf() method returns a number as a number:</p>
        <p>In this case we are returning "100 + 23"</p>

        <p id="demo9"></p>

        <script>
            document.getElementById("demo9").innerHTML =
                (100 + 23).valueOf();
        </script>

        <h3>Array Methods</h3>

        <p>Returning the length of an array</p>

        <p id="demo10"></p>

        <script>
            const fruits = ["Banana", "Orange", "Apple", "Mango"];
            let size = fruits.length;
            document.getElementById("demo10").innerHTML = size;
        </script>

        <hr />

        <p>Returning an array as a string that is separated by commas:</p>

        <p id="demo11"></p>

        <script>
            const fruits1 = ["Banana", "Orange", "Apple", "Mango"];
            document.getElementById("demo11").innerHTML = fruits1.toString();
        </script>

        <hr />

        <p>Romving the last element from an array using the pop() method.</p>

        <p id="demo12"></p>
        <p id="demo13"></p>

        <script>
            const fruits2 = ["Banana", "Orange", "Apple", "Mango"];
            document.getElementById("demo12").innerHTML = fruits2;
            fruits2.pop();
            document.getElementById("demo13").innerHTML = fruits2;
        </script>

        <hr />

        <p>Using the push() method to add new element kiwi to the end of the array</p>

        <p id="demo14"></p>
        <p id="demo15"></p>

        <script>
            const fruits3 = [1, 2, 3, 4];
            document.getElementById("demo14").innerHTML = fruits3;
            fruits3.push("Kiwi");
            document.getElementById("demo15").innerHTML = fruits3;
        </script>

        <hr />

        <p>Using the shift() method to remove and return the first element of any array then shift all remaining elements down.</p>

        <p id="demo16"></p>
        <p id="demo17"></p>

        <script>
            const fruits4 = ["Banana", "Orange", "Apple", "Mango"];
            document.getElementById("demo16").innerHTML = fruits4;
            fruits4.shift();
            document.getElementById("demo17").innerHTML = fruits4;
        </script>

        <h3>Date Methods</h3>

        <p>Create a new date object with the current date and time:</p>

        <p id="demo18"></p>

        <script>
            const d = new Date();
            document.getElementById("demo18").innerHTML = d;
        </script>

        <hr />

        <p>A date object can be created with a specified date and time:</p>
        <p id="demo19"></p>

        <script>
            const a = new Date("October 13, 2014 11:13:00");
            document.getElementById("demo19").innerHTML = a;
        </script>

        <hr />

        <p>Using new Date with different number of inputs.</p>
        <p>For example, 6 numbers specify year, month, day, hour, minute and second.</p>
        <p>This can be used from 7 numbers which adds milliseconds to the example above, down to 2 numbers which is year and month.</p>

        <p id="demo20"></p>
        <p id="demo22"></p>

        <script>
            const s = new Date(2018, 11, 24, 10, 33, 30);
            document.getElementById("demo20").innerHTML = s;
            const t = new Date(2018, 11);
            document.getElementById("demo22").innerHTML = t;
        </script>

        <hr />

        <p>Two digit years will be interpreted as 19xx:</p>
        <p>also to note, JavaScript counts months from 0 - 11 and any inputs larger than max amount of months/days rolls over to the next year/month. </p>

        <p id="demo21"></p>

        <script>
            const p = new Date(99, 11, 24);
            document.getElementById("demo21").innerHTML = p;
        </script>

        <h3>Function Methods</h3>

        <p>Multiplication Function with inputs 4 and 3.</p>

        <p id="demo23"></p>

        <script>
            let f = multiplicationFunction(4, 3);
            document.getElementById("demo23").innerHTML = f;

            function multiplicationFunction(a, b) {
                return a * b;
            }
        </script>

        <hr />


        <p style="color: darkslategrey;"></p>

    </section>

</body>
</html>