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> <...
suppose there is a mature Eclipse plug-in A Magi A with an input box and a button. Enter an email address in the input box, and click the button to send a pre-written email to the mailbox. at this point, you want to write an Eclipse plug-in B. when plug...
$datum = Coupon::orderBy( create_at , desc )->get(); SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near or...
Today it is 10 shock 19 echo strtotime(date( Y-m-d , time())); output 1539921600 is 12:0:0 on 2018-10-19 three days ago, it was 10 shock 16 . echo strtotime(date( Y-m-d , strtotime( -3 days ))); output 1539662400 is 12:0:0 on 2018-10-16 se...
problem description bothered me for several days, but how to assign values to iteam after ajax got the data? I don t know why I asked for a great solution. I tried a lot of methods . the environmental background of the problems and what methods you ...
for example, if I want to merge all the cells with the same logistics name, what should I do? ...