From d7588829729f69ccbe0156bcbdc8aed080cdfb37 Mon Sep 17 00:00:00 2001
From: Hanzhang ma <harvey.ma@eng2move.com>
Date: Sun, 23 Jun 2024 23:57:39 +0200
Subject: [PATCH] add NFE

---
 6.4NFE/t.js | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 6.4NFE/t.js

diff --git a/6.4NFE/t.js b/6.4NFE/t.js
new file mode 100644
index 0000000..a4d1392
--- /dev/null
+++ b/6.4NFE/t.js
@@ -0,0 +1,44 @@
+function sayHi(){
+    console.log("Hi");
+
+    sayHi.counter++;
+}
+
+console.log(sayHi.name)
+
+let user = {
+    sayHi(){
+
+    },
+
+    sayBye: function (){
+
+    }
+}
+
+console.log(user.sayBye.name)
+console.log(user.sayHi.name)
+
+function ask(question, ...handlers){
+    let isYes = confirm(question);
+
+    for(let handler of handlers){
+        if (handler.length == 0){
+            if (isYes) handler();
+        }else{
+            handler(isYes);
+        }
+    }
+}
+
+ask("Question?", () => console.log('You said yes'), result => console.log(result))
+
+console.log("the difference between the counter.count and closure is the counter.count can be accessed outside but closure cannot");
+
+let sayHi = function func(who){
+    console.log(`Hello, ${who}`);
+};
+
+sayHi("John");
+
+