Finished Chapter 18 exercises

Drummingcoder · Drummingcoder · commit 6e52291bd038 · 2025-05-23T03:40:27.000Z
diff --git a/ch18exercise1.html b/ch18exercise1.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <title>Chapter 18: Exercise 1</title>
+</head>
+<body>
+    <script>
+    function writeTimesTable(timesTable) {
+        var writeString;
+        for (var counter = 1; counter <= 12; counter++) { // error is here: counter <= 12, not counter < 12
+            writeString = counter + " * " + timesTable + " = ";
+            writeString = writeString + (timesTable * counter);
+            writeString = writeString + "<br />";
+            document.write(writeString);
+        }
+    }
+
+    for (var timesTable = 1; timesTable <= 12; timesTable++) {
+        document.write("<p>");
+        writeTimesTable(timesTable);
+        document.write("</p>");
+    }
+    </script>
+</body>
+</html>
diff --git a/ch18exercise2.html b/ch18exercise2.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <title>Chapter 18: Question 2</title>
+</head>
+<body>
+    <form name="form1" action="">
+        <input type="text" id="text1" name="text1" />
+        <br />
+        CheckBox 1<input type="checkbox" id="checkbox2" name="checkbox2" />
+        <br />
+        CheckBox 1<input type="checkbox" id="checkbox1" name="checkbox1" />
+        <br />
+        <input type="text" id="text2" name="text2" />
+        <p><input type="submit" value="Submit" id="submit1" name="submit1" /></p>
+    </form>
+    <script>
+        function checkForm(e) {
+            var elementCount = 0;
+            var theForm = document.form1;
+            while(elementCount =<= theForm.length) { // wrong operator
+                if (theForm.elements[elementcount].type == "text") {
+                    if (theForm.elements[elementCount].value() = "")
+                        alert("Please complete all form elements");
+                    theForm.elements[elementCount].focus;
+                    e.preventDefault();
+                    break;
+                }
+            }
+        }
+
+        document.form1.addEventListener("submit", checkForm);
+    </script>
+</body>
+</html>
