reactjs

问题 What i am trying to achieve is send a post request from my frontend to back end using axios.This post request has a csv file in its body. Using postman : postman request My code is this: import React, { Component } from 'react'; import axios from 'axios' class SessionsUpdate extends Component { state = { selectedFile: null } handleSubmit = async () => { let formData = new FormData(); formData.append('file', this.state.selectedFile); await axios.post( 'https://localhost:8765/...', formData, {

问题 Minimum Reproducible Example on Github (The images don't show in this MRE, but that's ok and doesn't matter because the problem I'm wondering about has nothing to do with that) Problem: Every time the slide index changes, the screen scrolls to the top of the page. It happens automatically. This happens when incrementing the slide number by 1 when decrementing the slide number from 3->1 or from 2->0 But does not happen when incrementing the slide number from slide 2 to slide 3 (slides numbered

问题 I have been trying to pass some props from my HOC to children. the HOC wraps react router switch and route. The props are missing in the child component. I make use of React.CloneElement to add the props to the children but do not seem to work <BrowserRouter> <Layout> <React.Suspense fallback={loading()}> <Switch> <Route exact path="/" component={Login} /> <Route path="/dashboard" component={Home} /> <Route path="/tickets" component={Tickets} /> </Switch> </React.Suspense> </Layout> <

问题 Consider the following react code. sendFormData = async formData => { try { const image = await axios.post("/api/image-upload", formData); this.props.onFileNameChange(image.data); this.setState({ uploading: false }); } catch (error) { console.log("This errors is coming from ImageUpload.js"); console.log(error); } }; Here is the test it("should set uploading back to false on file successful upload", () => { const data = "dummydata"; moxios.stubRequest("/api/image-upload", { status: 200,

问题 Consider the following react code. sendFormData = async formData => { try { const image = await axios.post("/api/image-upload", formData); this.props.onFileNameChange(image.data); this.setState({ uploading: false }); } catch (error) { console.log("This errors is coming from ImageUpload.js"); console.log(error); } }; Here is the test it("should set uploading back to false on file successful upload", () => { const data = "dummydata"; moxios.stubRequest("/api/image-upload", { status: 200,

问题 I am trying to find this answer, but all the other questions I have found are React Native. `handleEnter(e){ if(e.key == 'Enter'){ //REMOVE KEYBOARD } }` Also my input is a text search. So I want the keyboard to hide so users can see the results that come up. 回答1: e.target is the focused input or textarea where the user is writhing. When he click on Enter the focused input became unfocused and so the keyboard disappear `handleEnter(e){ if(e.key == 'Enter'){ e.target.blur(); } }` 来源： https:/

问题 I have a bunch of API calls that I would like to unit test. As far as I know, unit testing API calls doesn't involve actually making those API calls. As far as I know you would simulate responses of those API calls and then test on the DOM changes however I'm currently struggling to do this. I have the following code: App.js function App() { const [text, setText] = useState(""); function getApiData() { fetch('/api') .then(res => res.json()) .then((result) => { console.log(JSON.stringify

问题 I am trying to find this answer, but all the other questions I have found are React Native. `handleEnter(e){ if(e.key == 'Enter'){ //REMOVE KEYBOARD } }` Also my input is a text search. So I want the keyboard to hide so users can see the results that come up. 回答1: e.target is the focused input or textarea where the user is writhing. When he click on Enter the focused input became unfocused and so the keyboard disappear `handleEnter(e){ if(e.key == 'Enter'){ e.target.blur(); } }` 来源： https:/

问题 I have a bunch of API calls that I would like to unit test. As far as I know, unit testing API calls doesn't involve actually making those API calls. As far as I know you would simulate responses of those API calls and then test on the DOM changes however I'm currently struggling to do this. I have the following code: App.js function App() { const [text, setText] = useState(""); function getApiData() { fetch('/api') .then(res => res.json()) .then((result) => { console.log(JSON.stringify

问题 I have a bunch of API calls that I would like to unit test. As far as I know, unit testing API calls doesn't involve actually making those API calls. As far as I know you would simulate responses of those API calls and then test on the DOM changes however I'm currently struggling to do this. I have the following code: App.js function App() { const [text, setText] = useState(""); function getApiData() { fetch('/api') .then(res => res.json()) .then((result) => { console.log(JSON.stringify