Too many $watch() calls degrading performance
In AngularJS, $watch() is a core feature used to watch for changes in variables and run associated callback functions. While $watch() is highly useful, excessive use of it can lead….
Tag: digest cycle
Overuse of $scope.$apply() degrading performance
In AngularJS, $scope.$apply() is a crucial mechanism that synchronizes the model and view, but excessive or improper use can degrade performance significantly. In this guide, we will explore: 1. Understanding….
Directive not working with async data
If your AngularJS directive is not updating when async data (e.g., API response, $http, $q, or $timeout) is loaded, the issue is likely due to binding problems, scope synchronization, or….
Custom directive does not update DOM
If your custom directive is not updating the DOM, it’s likely due to scope binding issues, incorrect directive configurations, or digest cycle problems. Below, I’ll explain step by step how….
Memory leak due to unhandled $watch
In AngularJS, $watch() is used to monitor scope variables and trigger a function when the value changes. However, if $watch() is not properly cleaned up, it can cause memory leaks,….
[$rootScope:inprog] $apply already in progress
The error [$rootScope:inprog] $apply already in progress in AngularJS occurs when an attempt is made to call $apply() while AngularJS is already in the middle of an $apply() execution cycle…..
Debugging slow $digest cycles in AngularJS
In AngularJS applications, the $digest cycle is the process through which the framework checks for changes in the model and updates the view accordingly. It is crucial to the functioning….
How to optimize digest cycle performance
AngularJS relies on a digest cycle to detect changes in the model and update the view accordingly. However, this digest cycle can become a bottleneck if it triggers too often….
Using $scope.$evalAsync() for async updates
In AngularJS, $scope.$evalAsync() is a powerful method used to schedule an asynchronous update to the scope model. It allows you to evaluate expressions and update the scope in a way….
When to use one-time binding (::)
In AngularJS, one-time binding (denoted by ::) is a powerful feature that can be used to optimize performance, especially in applications with complex or large-scale data. One-time binding allows you….