reactjs

问题 tldr: Check the repo - common.js includes all dependencies, even though, only one is used on the respective page. http://localhost:3000/components/ComponentOne http://localhost:3000/components/ComponentTwo Livedemo: click here More Details: I have an app (find attached a grossly simplified version) where based on a user input a different component is rendered. Finding the component to be rendered happens via a component-map. It makes sense that the common.js includes all dependencies for the

问题 tldr: Check the repo - common.js includes all dependencies, even though, only one is used on the respective page. http://localhost:3000/components/ComponentOne http://localhost:3000/components/ComponentTwo Livedemo: click here More Details: I have an app (find attached a grossly simplified version) where based on a user input a different component is rendered. Finding the component to be rendered happens via a component-map. It makes sense that the common.js includes all dependencies for the

问题 Im trying to implement a chartercter limit for a textArea in react js here is my code. state = { chars_left: 140; } handleWordCount = event => { const charCount = event.target.value.length; const maxChar = this.state.chars_left; const charLength = maxChar - charCount; this.setState({ chars_left: charLength }); } <textArea rows={6} type="text" maxLength="140" required onChange={this.handleWordCount} /> { ${this.state.chars_left} } I have a function that should that show how many character the

问题 Im trying to implement a chartercter limit for a textArea in react js here is my code. state = { chars_left: 140; } handleWordCount = event => { const charCount = event.target.value.length; const maxChar = this.state.chars_left; const charLength = maxChar - charCount; this.setState({ chars_left: charLength }); } <textArea rows={6} type="text" maxLength="140" required onChange={this.handleWordCount} /> { ${this.state.chars_left} } I have a function that should that show how many character the

问题 Im trying to implement a chartercter limit for a textArea in react js here is my code. state = { chars_left: 140; } handleWordCount = event => { const charCount = event.target.value.length; const maxChar = this.state.chars_left; const charLength = maxChar - charCount; this.setState({ chars_left: charLength }); } <textArea rows={6} type="text" maxLength="140" required onChange={this.handleWordCount} /> { ${this.state.chars_left} } I have a function that should that show how many character the

问题 I want the table height to fit the parent’s available height. Ideally, I want: The footer to always be docked at the bottom of the parent container. If the table contains a few rows, the footer should remain docked at the bottom. If the table contains more rows than fit the parent’s height and needs to overflow then the overflow should be visible only for the table body, and the footer should remain docked at the bottom and not be pushed downwards. A flexbox approach if possible (it seems to

问题 I have an electron app based on electron-react-boilerplate . Now, that I have one window running as I wanted it to run, I started to create a new window. I currently have 2 html files - one for each window - containing div roots: <div data-root id="main_root"></div> <div data-root id="second_root"></div> My index.js file that is response for rendering the react app looks like this: import React from 'react'; import { render } from 'react-dom'; import { AppContainer } from 'react-hot-loader';

问题 I have a project with dynamic route like /[category]/[product] . After a client-side request via useRouter to graphql for example /hatchback/nissan/ returns a product with a code of 200, but if I make a request to /hatchback/nissan111/ , I get an error because no such route exists and its response code still of 200 instead of 404. How can I check if a route exists and return a 404 status code during the component mount stage? I use SSR to achive this 来源： https://stackoverflow.com/questions

问题 I have a project with dynamic route like /[category]/[product] . After a client-side request via useRouter to graphql for example /hatchback/nissan/ returns a product with a code of 200, but if I make a request to /hatchback/nissan111/ , I get an error because no such route exists and its response code still of 200 instead of 404. How can I check if a route exists and return a 404 status code during the component mount stage? I use SSR to achive this 来源： https://stackoverflow.com/questions

问题 We have asp.net core (v3.0) Web API backend(no auth yet). A frontend is going to be a SPA( React ). A frontend basically will be an admin panel, it means the website's home page should be just the login page. We are planning on using IdentityServer4 for auth(separate project). If we create the IdentityServer4 project( MVC ) it will have its own login form/page. Since opening our client website(react) login form should be opened, popout and iframe is not the way we are considering to use, what