Yes you are right ! , we are here to find out the real use of useEffect hook in ReactJS
1. Ofcourse its ReactJS ! , The functional programming paradigm and lastly at least a basic understanding of components in reactjs.
What is useEffect
With the release of React 16.8 there is a new feature that will replace the redundant and hard to maintain React life cycle methods like ComponentDidMount , ComponentWillMount etc.React has moved from Class to functional components.In this tutorial ill be explaining how you can get data from redux store in your functional component.
The Redux Architecture
The concepts of redux is exactly the same as class with React Hooks and functional components.We create a centralized data store (A collection of reducers).Actions …
First things first,this article is intended for people who are familiar with Angular and MVVM architecture, but yet to try ngrx in their application.
What im trying to put is
What im not trying to say is (at least for now :))
Creating a list of data (user information) with Angular 8 & using ngrx as a data store. …
For every single page application there must be a store for optimal way of data sharing between components.For Reactjs we have redux/flux and for Angular we have ngrx. For Vuejs we have vuex.
Before you proceed you should have a basic understanding of Vuejs or at least the concept about Model–view–viewmodel (MVVM).We will be having components ,views and styles like every SPA frameworks.Ill be covering vuex from scratch so no prior knowledge in vuex is required.
What is a store ?
A store as for every single page application is a single point of truth(simply data).It provides API’s for modifying…
One of the biggest challenges developers face while developing a web application is how to efficiently manage CSS.Traditional CSS can generate a lot of dead code in our application and thereby impacting the performance as well as size of our bundle.
Lets Dig in :-)
A basic understanding of ReactJS,states,props…
What is code coverage ?
As the good ol google says “In computer science, code coverage is a measure used to describe the degree to which the source code of a program is executed when a particular test suite runs.” ,simple as it is ;)
How do we do it ?
1.Basic knowledge of Angular 2
2,Typescript (if you are coding in type script)
and finally some good googling skills ;)
Step 1 : Scaffold your Angular 2 Application ,Install all the necessary packages that comes along with the package.json
In a npm console ,
AngularJS 2 $http testing with Jasmine
1.Basic knowledge of AngularJS 2 ,Jasmine
2.Understanding of “What is $http call ” ,basically how an API call works
First lets configure our component
Lets see out HTML
So the functionality is simple and clean on click of the “Call API ” button , we will get the response :)
Testing this $http call using Jasmine
In our appcomponent.spec.ts ,include all the required libraries
Now we have to configure our TestBed ,we use MockBackend for testing $http calls
The beforeEach section ,we have to include MockBackend
Now lets write our test case
Just another geek