js debounce

utils/debounce.js

@@ -1,10 +1,15 @@
-function debounce(fn, delay=800){
-	let timer = null;
-	return function(){
-		clearTimeout(timer);
-		timer = setTimeout(()=> {
-			fn.apply(this, arguments);
-		}, delay)
-	}
+function debounce(fn,wait=1500){
+  var flag = true;
+  var timer = null;
+  return function(){
+    if(flag) {
+      fn.apply(this,arguments);
+      flag = false;
+      timer = setTimeout(() => {
+        flag = true
+      },wait)
+    }
+  }
 }
+
 export default debounce