Modifying state directly instead of using setState()
In React class components, you should never modify state directly by assigning to this.state. Here’s why and how to do it properly: Why Direct Mutation is Bad The Correct Way:….
Tag: JavaScript
Debugging AngularJS applications with Chrome DevTools
Debugging is crucial for developing AngularJS applications. Chrome DevTools provides powerful features for debugging, inspecting, and optimizing AngularJS applications. In this guide, we will cover: 1. Enabling and Opening Chrome….
How to improve performance using $timeout()
AngularJS applications often face performance issues due to excessive digest cycles. $timeout() can be strategically used to defer executions, optimize change detection, and reduce unnecessary UI updates. In this guide,….
Using immutable data structures with AngularJS
AngularJS relies on two-way data binding, meaning that changes in the model automatically update the view and vice versa. However, frequent modifications to objects and arrays can lead to performance….
Preventing $digest cycle from triggering on every event
In AngularJS, the $digest cycle is responsible for detecting changes and updating the DOM accordingly. However, frequent triggering of the $digest cycle (especially on high-frequency events like mousemove, scroll, and….
Using $cacheFactory for API response caching
In AngularJS, frequent API calls can slow down application performance and increase server load. To optimize performance, we can use $cacheFactory to cache API responses, reducing redundant requests and improving….
Reducing digest cycle execution time
In AngularJS, the digest cycle is responsible for checking and updating bindings between the model and the view. However, when dealing with large applications or complex UI interactions, digest cycles….
How to use track by with ng-repeat?
In AngularJS, ng-repeat is used to loop over a list and display items dynamically. However, by default, AngularJS tracks items by their index, which can lead to performance issues, especially….
Using $scope.$on(‘$destroy’) for cleanup
In AngularJS, when a controller or directive is removed from the DOM, its associated $scope should be properly cleaned up to avoid memory leaks. The $scope.$on(‘$destroy’) method is used to….
How to avoid memory leaks in AngularJS?
Memory leaks in AngularJS occur when references to objects persist even after they are no longer needed. This can degrade application performance over time. Below are the best practices to….