When the backend request task is large, you can set the synchronization time and operation.
Use ng-model-options to achieve it to improve website performance.
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script src=""></script>
</head>
<body>
<div ng-app="module" ng-controller="ctrl">
<!--updateOn:blur,Synchronous updates when the mouse leavesscopedata-->
<!--debounce:5000,data输入完成后5Second，Synchronous updatesscopedata-->
<input type="text" ng-model="title" ng-model-options="{updateOn:'default blur',debounce:{default:2000,blur:0}}">
<!--ng-model-options="{updateOn:'default blur',debounce:{default:2000,blur:0}}
Enter the cursor to leave，Update now，If you don't leave，2Second后更新
-->
{{title}}
</div>
<script>
var m = ('module', []);
('ctrl', ['$scope', function ($scope) {
}]);
</script>
</body>
</html>
The above method of setting data synchronization in angularJs is all the content I share with you. I hope you can give you a reference and I hope you support me more.