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There is a problem with the operation of React after packaging.
I can run before packaging without any error reports. This problem occurs after packaging. reports such an error in the browser, using scaffolding made by create-react-app, and the back end is Node.js, backend. No error is reported: packages two diff...
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The elements in an array are all arrays. How do you merge all the elements in an array into one array?
like this [array [xxx], array [xxx], array [xxx].]
merge all xxx in array into one array [xxx.]
...
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How does ant design customize form validation?
how does react ant use custom form validation?
1. Code
const Login = (
{
loading,
dispatch,
form: {
getFieldDecorator,
validateFieldsAndScroll
},
}
) => {
function handleOk() {
validateFieldsAndScroll((error...
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After the ant-design-pro project npm run build, the browser opens and reports an error.
simply write a project with ant-design-pro, and write a server.js and npm run build packaged file in the root directory with the built-in mock API,. The dist directory is as follows:
server.js:
server.js302Cannot read property notifyCount of unde...
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React server rendering, third party package window is not defined.
recently encountered a demand, the react project needs to add a rich text editor, there are many online, to find a braft-editor, their own new project to use no problem. However, when adding to the project, because the project uses server rendering (jus...
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Do you always feel that there is a difference in the effect of the website products made by vue and react?
take websites made of Vue as an example.
Baimi Wallet https: www.bmqb.com a safety( website comes from the sponsor of the official Vue.js website)
brief Nuggets.
I don t know why. I always feel that these vue sites can be seen at a glance that...
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Module build failed: ReferenceError: [BABEL] reported a wrong request for help
package.json
{ "name ": "demo ", "version ": "0.1.0 ", "homepage ": ". ", "private ": true, "dependencies ": {
"antd": "^3.0.1",
"autoprefixer": "7.1.1",
"axios": "^0.16.2",
"...
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React link node interface to get data without database?
set an interface in node and call it with react. The status code always shows that the status code is 304 react: .
componentWillReceiveProps(nextProps){
let that=this;
let tab=nextProps.tab|| attention ;
let sort=nextProps.sort|| like
...
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As soon as the backend node agent is turned on (cross-domain data acquisition), the front end will appear cant get XXX as soon as it is refreshed.
this occurs as soon as the background of node is opened and the front end is refreshed.
node:
in this case, it is OK to turn off node before refreshing. The agent has successfully obtained the data. I opened the front end first, and then the nod...
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How to use the fs module in react?
The react project is packaged in webpack, and you can directly use the path module in require node. but require ( fs ) will report an error:
looked it up on the Internet and added this configuration to webpack.config:
node:{
fs: empty ...
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How to rewrite components into react 16 form
an expandable and shrinking react component. Inside the component, there is a button to switch between shrinking and expanding, and pull down, pull up and expand in the internal support of the component, and throw onChange events when changing .
how to...
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Why doesn't react automatically generate key? for lists?
Why doesn t react automatically generate key, for lists instead of developers writing their own key?
The uniqueness of react generated by itself can be guaranteed, is it because the stability of key cannot be guaranteed?
...
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The react project uses proxy to solve cross-domain problems in package.json
as shown in the figure, using proxy to solve cross-domain, I see many blogs say that this can solve cross-domain. What is the reason for this? A blog said that it was written in this way, and tried to report an error saying that proxy should not be ...
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Does it make sense to return this key, if there is no information in the fields in the data structure returned by the backend?
whether the fields in the data structure returned by the backend have no information need to return this key?
for example, there is a list, in the list result. If the list is empty, does the backend not return the list field?
how is it reasonable?
...
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React development, server console always have this kind of error?
as detailed in the title:
develop react project, use git bash to set up the server, but when the page changes the code and makes a mistake, the server always crashes and has to be restarted. I remember that it didn t seem to be so fragile before, h...
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Dva-cli create project npm start prompt "Cannot find module'.. / lib/server'" to solve.
< H1 > dva-cli create project npm start prompt "Cannot find module .. lib server " to solve. < H1 >
it is not possible to reinstall the node package, and there are some in roadhog
the following is the picture:
...
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Margin has been set to 0. Why do you still empty a large chunk?
...
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How do projects created with create-react-app use nodejs as the back end?
because there is an official react-dev-server, I use express to write a node server feel there is a conflict? How to solve it ...
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Running the company's react project reported an error properties?
error message is shown in the following figure ...
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How does vue implement multi-tier menus? The submenu is not in the same column as the parent menu
as shown in figure
do you have ready-made wheels?
...