callback hell

Mehak-Kamran · Mehak-Kamran · commit 74a1bb63a99d · 2024-02-09T14:00:21.000Z
diff --git a/advance js/callback.js b/advance js/callback.js
@@ -0,0 +1,26 @@
+//callback hell
+
+function database(id,database){
+    setTimeout(()=>{
+       console.log("data of",id)
+       if(database){
+        database()
+    }
+    },2000)
+    
+
+
+}
+console.log("getting next data 3004")
+database(3004,()=>{
+    console.log("getting next data 3005")
+    database(3005,()=>{
+        console.log("getting next data 3006")
+        database(3006,()=>{
+            console.log("getting next data 3007")
+            database(3007)
+        })
+    })
+})
+
+
diff --git a/advance js/index.html b/advance js/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    hey 
+    <script src="callback.js"></script>
+</body>
+</html>
