diff --git a/02-async-js/hard (promises)/2-sleep-completely.js b/02-async-js/hard (promises)/2-sleep-completely.js
index 499a5647..8febbff1 100644
--- a/02-async-js/hard (promises)/2-sleep-completely.js	
+++ b/02-async-js/hard (promises)/2-sleep-completely.js	
@@ -1,8 +1,20 @@
-/*
- * Write a function that halts the JS thread (make it busy wait) for a given number of milliseconds.
- * During this time the thread should not be able to do anything else.
- */
+function promiseBody(resolve,reject){
+var timeNow =Date.now();
+while((Date.now()-timeNow)/1000<=seconds)
+{
+
+}
+resolve('busy wait done')
+}
 
 function sleep (seconds) {
+    var promise = new Promise(promiseBody);
+    return promise;
+}
 
-}
\ No newline at end of file
+function printfn() {
+    console.log('thread was halt for'+' '+seconds+' '+'seconds' );
+}
+var seconds=5;
+var answer= sleep(seconds);
+answer.then(printfn);