Top "State" questions

react / functional component / props changed / getDerivedStateFromProps

Lets say I'm doing a simple CRUD app in react. My functional component is basically just the form. In the …

javascript reactjs components state

How to check for broken images in React JS

I'm writing a module that takes article data from json and shows a large image over the article text, a …

javascript reactjs error-handling state

I do not understand the concept of Non Deterministic Turing Machine

I do not the understand the concept of Non Deterministic Turing Machine. I guess I understand the term Non deterministic …

algorithm state turing-machines non-deterministic

Is there a way to gray out (disable) a tkinter Frame?

I want to create a GUI in tkinter with two Frames, and have the bottom Frame grayed out until some …

python tkinter frame state

Ant Design form set values form props

I'm using antd design in my form. Here I'm setting value from reducer profilereducer by using shouldComponentUpdate method. class ProfileForm …

reactjs redux state antd react-props

How to add new State/Province and City dropdown in Magento 1.6.2?

How to add new State/Province and City dropdown in Magento 1.6.2? When we choose United States as country then we …

magento add state city

Android - Best Practices for ViewModel State in MVVM?

I am working on an Android App using the MVVM pattern along LiveData (possibly Transformations) and DataBinding between View and …

android mvvm state viewmodel

Replace array item with another one without mutating state

This is how example of my state looks: const INITIAL_STATE = { contents: [ {}, {}, {}, etc.. ], meta: {} } I need to be able and …

reactjs state redux mutation

React - Changing the state without using setState: Must avoid it?

My code works, but I have a best practice question: I have an array of objects in the state, and …

javascript arrays reactjs state setstate

this.state vs state in React

I'm working in a new codebase. Normally, I would set up state like this in a React component: class App …

javascript reactjs state react-props