react-props

I have created a React View, say MyView , which has 2 text inputs whose initial values will be passed by parent read from a DB. I also want the changed values to be saved back to DB. So, the view is also passed a callback function for the same. Consider that DB save operation is heavy and you should not do it very frequently . So, I decided to listen to onBlur events instead of onChange events on the input boxes as onChange is invoked on every key stroke. First Approach: class MyView extends React.Component { constructor(props) { super(props); } render() { return ( <div> <input type="url"

I am trying to pass values and props , that formik needs 1 component up. I am using various little components for some forms, and I am passing them in a complex component that needs to pass them down to each individual render when called. Basically all the FormikProps. Here is one such component. import React, { Fragment } from 'react'; import debounce from 'debounce-promise'; import classNames from 'classnames'; import { Field, FormikProps, ErrorMessage } from 'formik'; import Asterisk from 'shared/common/components/element/Asterisk'; import { validateUsername } from '../../utils/index';

I have a React Wrapper Component, that accepts some props, but forwards all others to the child component (especially relevent for native props like className, id, etc.). Typescript complains, however, when I pass native props. See error message: TS2339: Property 'className' does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes< Wrapper > & Readonly< { children?: ReactNode; }> & Readonly< WrapperProps>'. How can I get a component with specific props that also accepts native props ( without accepting any props and giving up on type checking)? My code looks like this: interface

Is there any proper way to access a property in the state of a child component and get its value from a parent component? I have a component called "itemSelection" where I map through an api response to get some items like this <div className="row"> {this.state.items.map(i => <Item ref="item" id={i.id} name={i.name} quantity={i.quantity} />)} </div> In the Item component there a property in the state called "selected" which I want to know its value if it was true or false in the itemSelection component. I know I can pass props from itemSelection to Item but what if I want the opposite? where I

I'm working in a new codebase. Normally, I would set up state like this in a React component: class App extends React.Component { constructor() { super(); this.state={ foo: 'bar' } } .... In this new codebase, I'm seeing a lot of this: class App extends React.Component { state={ foo: 'bar' } .... Is there an advantage to doing it this way? They seem to only do it when state doesn't need to be altered. I always thought of state as being something React handled. Is this an ok thing to do? The end result of both approaches is the same. Both approaches are just setting the initial state of the

I have two calendars, such as the Agenda, have an icon calendar button, when I click on it, it will be redirected to another calendar (Planning) , these calendars are developed with react-big-calendar , I want when I navigate for example on the week of juin 17 - 23 of Agenda and I click on the icon calendar, it will be redirected to juin 17 - 23 of the Planning. My code is : https://codesandbox.io/s/m7k904y3o8 I try to send the date with getWeek() , but it doesn't work. How can I fix it ? You can add additional data to this.props.history.push which will then be available in the location prop