update

SahinShazi · SahinShazi · commit 7345c34e8b5f · 2025-08-15T16:17:07.000+06:00
diff --git a/07- function/demo.js b/07- function/demo.js
@@ -0,0 +1,61 @@
+//JavaScript function with out html
+//Code Drive Invocation 
+function myFunction(fullName, age, dateOfBirth = 1991) {
+  console.log('Hello ' + fullName + "I'm " + age + " years old. " + ' My date of birth ' + dateOfBirth + '.');
+}
+
+myFunction('Sahin. ',20, 2000);
+myFunction('Enam. ',17, );
+
+//function with html
+//Even Driven Invocation 
+function isSubscribed() {
+  console.log("Subscribed");
+}
+document.getElementById('btn').addEventListener('click', isSubscribed);
+
+
+//Automatic (Self-Invoked) Invocation 
+(function () {
+ console.log('I am Self-Invoked function')();
+})
+
+
+
+//Use function in variable 
+let maths = function(x, y) {
+  return x * y;
+};
+console.log(maths (3,4));
+console.log(maths (50,8));
+
+
+//Arry 
+let number = [2,3,4,5,8,90,100];
+let sqNumbers = number.map(function (number) {
+  return number * number;
+})
+console.log(sqNumbers);
+
+
+
+
+let add = function (x,y) {
+  return x + y;
+}
+console.log(add(5,6));
+
+//Arrow function
+let add1 = (x,y) => x + y;
+console.log(add(6,90));
+
+//Next state function 
+function greet(firstName) {
+  function sayHello() {
+    alert('Hi ' + firstName);
+  }
+  return sayHello();
+}
+greet('Sahin Enam');
+
+
diff --git a/07- function/index.html b/07- function/index.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Demo</title>
+</head>
+<body>
+  
+  <button id="btn">Subscribe</button>
+  
+  
+  <script src="demo.js"></script>
+</body>
+
+<style>
+  button{
+    background: red;
+    padding: 20px 35px;
+    color: white;
+    font-size: 18px;
+    border-radius: 10px;
+    border: 0;
+  }
+  
+</style>
+</html>
