in the development of a react project, how to optimize multiple interfaces on a page? In react project development, multiple APIs are called on a page. for example, page calls API A-> B-> C to initialize the page, and the A, B, C API is used not only...
suppose the state in redux looks like this: state = { value: aaa , list:[ 123 , 321 , 12231 ] } The A component is an input,input whose value corresponds to the value in state. B component is a list,list content that needs to be obtai...
how does WeChat Mini Programs integrate redux? so that the state layer does not rely on WeChat Mini Programs, then web app and WeChat Mini Programs can almost use the same set of state layer programs? ...
how to dynamically generate react-navigation drawer navigation based on the permissions returned by the background? ...
If the store status of 1.redux is a reference type, you can directly modify the store.getState (). Xxx.xxx=? Modify it directly; let state1 = {person: {name: ss }} function reduce(state = state1, action) { return {...state} }...
this is the Table component {this.props.tableData.map((item, index) => { return ( <tr key={index}> <td>{item.id}< td> <td>{item.name}< td> <td>{item.price}< td> <td...
there are multiple levels of tab and step, in state. It is very painful to modify a deeper level of state. How to split reducer?? Or how to flatten the reducer? var tabs = [ { id:1, children:[ { id:11, ...
wepy-redux triggers action, in methods but does not trigger reducer ...
it is very common for an interview question. Although a large number of theoretical answers are found in the evening, I want to know how to separate the front and rear ends in practical projects . the concept of ssr server rendering has always been vag...
after webpack uses hot updates, redux reports an error as follows has tried a lot of methods, but it doesn t work. The react update uses webpack-hot-middleware + webpack-dev-middleware and uses node server.js to start the service. Hot updates are ...
this.handleClickRow = this.handleClickRow.bind(this) I can pass it this way without redux <BasicInformation basicInformationData = { basicInformationData } submitTaskId = { this.submitTaskId } getTaskId = { _self.state.selectTaskId } ...
constructor() { super(); this.state = { showPageGroup: [], current: 0, showPageNumber: 0, currentShowPage: 0, selectTaskId: [], ID preSelTaskIdQuantity: 0,...
redux ...
I want to add a mapDispatchToPropsReview, to this component, but I can t get it in props . main file import React from react ; import Review from . components Review ; import . assets styles index.less ; import rootReducer from .. .. .. ...
problem description use KOA2+Sequelize to make a simple todo column, access the remote interface, add and modify actions, and the local store data is emptied the environmental background of the problems and what methods you have tried search Baidu...
npm packet address https: www.npmjs.com package. the code is as follows: module.exports = { post: async function(url, headers, postBody) { const _self = this; var response = []; try { const response = await ...
< H1 > question 1 < H1 > what is the difference between the following two pieces of code, and why one uses ({}) and the other does not use toggleTodo = id => ({ type: TOGGLE_TODO , id }); toggleToChange = (id)=> { return { ...
There is store reducer action saga in redux. Where is everyone s business logic written? ...
import React from react ; import DifferentLabels from . DifferentLabels const DifferentLabelsDiv = ({ todos, toggleTodo }) => ( <div> {todos.map(todo => <DifferentLabels key={todo.id} ...
first paragraph import React from react import { connect } from react-redux import { addToCart } from .. actions cart-actions let AddTodo = ({ dispatch }) => { let input = ; return ( <div> <...
made a website for someone else. I don t know what this domain name used to do. I received a large number of requests and read the iis log, which seems to provide real-time weather forecasting service? now CPU, is soaring as soon as the website serve...
I opened the Jupyter Notebook page in Firefox and Chrome and found that the style of the checkbox was different FirefoxFirefoxFirefox FirefoxUbuntu 18.04 60.0.2 (64-bit) Inputfiddle ...
some time ago, I encountered such a question in the interview: var num=0; for(var i=0;i<10;iPP) { var num=1; num+=i; } console.log(num); numnumconsole.lognum09 ...
each request can only get 15 pieces of data from the current page. After page change or search, the component is not refreshed and the componentDidMount function is not executed. is there a way to refresh the component after re-requesting data? ...
for the data requested by the backend, in order to implement the deletion API, you need to obtain the id, of the deleted data. Please tell me how to obtain it with jq. Thank you. ...