87 lines
3.0 KiB
HTML
87 lines
3.0 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Women4IT - JavaScript</title>
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<meta name="description" content="Women4IT JavaScript Exercise: Variables -1">
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<!-- Bootstrap CSS -->
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
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<!-- Customise Bootstrap for practical grid layouts -->
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<link rel="stylesheet" href="../assets/css/bootstrap-custom.css">
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<style>
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.container { padding-top: 40px }
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.js-box {
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border:solid 1px yellow;
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padding:20px;
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background-color: lightyellow;
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margin-bottom: 48px;
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font-size: larger;
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}
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#resultBox, #resultNum {
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border: solid 1px green;
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height: 40px;
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background-color: #E7FFE7;
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width: 280px;
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padding: 3px 12px;
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}
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</style>
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</head>
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<body>
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<div class="container col-md-8 offset-md-2">
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<h1><b>Exercise 5-3</b>: Javascript User Input</h1>
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<p>This script adds two user-entered numbers.</p>
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<h3>Add Two Numbers</h3>
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<div class="js-box">
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<p>First Number: <input type="text" id="firstNum"></p>
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<p>Second Number: <input type="text" id="secondNum"></p>
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<p><button onclick="addNumbers()">Add Numbers</button>
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<button onclick="resetNums()">Reset All</button></p>
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<p>Total: </p>
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<div id="resultNum"></div>
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</div>
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</div>
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<!-- jQuery library -->
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
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<!-- Popper JS -->
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<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
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<!-- Latest compiled JavaScript -->
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
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<script>
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function addNumbers() {
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/* Place the two user-entered numbers in variables */
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let firstNum = document.getElementById("firstNum").value;
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let secondNum = document.getElementById("secondNum").value;
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/* Convert string inputs to numeric variables */
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firstNum = parseFloat(firstNum);
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secondNum = parseFloat(secondNum);
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/* Put sum of the two numbers in a new variable */
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let resultdNum = firstNum + secondNum;
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/* Display the result on the web page */
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document.getElementById("resultNum").innerHTML = "<b>"+resultdNum+"<\/b>";
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}
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function resetNums() {
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document.getElementById("firstNum").value = "";
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document.getElementById("secondNum").value = "";
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document.getElementById("resultNum").innerHTML = "";
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}
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</script>
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</body>
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</html> |