How can I dynamically set the name of the array in state, to get it from state.  onCheckBoxItemClickList(e, value, path) {     console.log(e.target.checked)     if (e.target.checked) {         //append to array         this.setState({             [pa...
I don't understand why React not update my object. In another component through the dispatch I update the state. In this (in code below) code in mapStateToProps categories are changing (console log show one more category). But component not reren...
I'm a newbie in React Native and struggling in cleaning up the state of the screen.   Like screen A has some states --> screen B, back to screen A, old states are clear. I'm using React Navigation V5  What I'm trying to do is:    After...
I want this loader to render while my fetch is making its request. I have a <Loader/> component which doesn't seem to render though? Isn't my logic and life-cycle usage correct?   I've added some comments throughout the form...  imp...
I have a state in Redux called page and is changed whenever I click a URL to another page. This is to make my website just have one URL. Whenever I request for a new page, it only gets updated on the next click. For example, when I click Login, nothi...
OperationSavDetails.js   class OperationSavDetails extends Component {   constructor(props) {     super(props);     this.state = {       statusUpdateDropDownOpen: false,       statusUpdateDropDownValue: "Mettre à jour le status de l'opér...
I'm building a project management app, and I'm a bit new to Hooks, so please bear with me.  Link to the app, link to the code.  The user should have the ability to add a new project. They can add a name, description and date, which would then...
I am creating a simple React.js app and trying to create an input box that "live" filters results from an array of data, controlling what is displayed on the page in real time.  The step that filters the data display state is failing and empt...
I am trying to update a nested state in my React login component to handle change to the login form fields.   Login Container Component  class Login extends Component {      constructor() {          super();          // define state         this.stat...
Trying to log information from state to console returns the error 'undefined is not an object (evaluating 'this.state.userName')'  I am very new to JS and so I really dont know how this works or how it's supposed to work  I tried...

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