hooks | 小程序 API 的 hooks 封装。 | Chat library
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kandi X-RAY | hooks Summary
小程序 API 的 hooks 封装。.
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QUESTION
I am learning react js. I am a very beginner at this topic. But when I am doing setup to create a react environment I got an error. I have tried to solve the problem by Charles Stover blog in medium. But I got an error Command "up" not found
.
Here's my index.js file:
...ANSWER
Answered 2021-Sep-06 at 09:40I got two different solution.
- remove
QUESTION
I have been using github actions for quite sometime but today my deployments started failing. Below is the error from github action logs
...ANSWER
Answered 2022-Mar-16 at 07:01First, this error message is indeed expected on Jan. 11th, 2022.
See "Improving Git protocol security on GitHub".
January 11, 2022 Final brownout.
This is the full brownout period where we’ll temporarily stop accepting the deprecated key and signature types, ciphers, and MACs, and the unencrypted Git protocol.
This will help clients discover any lingering use of older keys or old URLs.
Second, check your package.json
dependencies for any git://
URL, as in this example, fixed in this PR.
As noted by Jörg W Mittag:
For GitHub Actions:There was a 4-month warning.
The entire Internet has been moving away from unauthenticated, unencrypted protocols for a decade, it's not like this is a huge surprise.Personally, I consider it less an "issue" and more "detecting unmaintained dependencies".
Plus, this is still only the brownout period, so the protocol will only be disabled for a short period of time, allowing developers to discover the problem.
The permanent shutdown is not until March 15th.
As in actions/checkout issue 14, you can add as a first step:
QUESTION
I am currently setting up a boilerplate with React, Typescript, styled components, webpack etc. and I am getting an error when trying to run eslint:
Error: Must use import to load ES Module
Here is a more verbose version of the error:
...ANSWER
Answered 2022-Mar-15 at 16:08I think the problem is that you are trying to use the deprecated babel-eslint parser, last updated a year ago, which looks like it doesn't support ES6 modules. Updating to the latest parser seems to work, at least for simple linting.
So, do this:
- In package.json, update the line
"babel-eslint": "^10.0.2",
to"@babel/eslint-parser": "^7.5.4",
. This works with the code above but it may be better to use the latest version, which at the time of writing is 7.16.3. - Run
npm i
from a terminal/command prompt in the folder - In .eslintrc, update the parser line
"parser": "babel-eslint",
to"parser": "@babel/eslint-parser",
- In .eslintrc, add
"requireConfigFile": false,
to the parserOptions section (underneath"ecmaVersion": 8,
) (I needed this or babel was looking for config files I don't have) - Run the command to lint a file
Then, for me with just your two configuration files, the error goes away and I get appropriate linting errors.
QUESTION
I have been trying out an open-sourced personal AI assistant script. The script works fine but I want to create an executable so that I can gift the executable to one of my friends. However, when I try to create the executable using the auto-py-to-exe, it states the below error:
...ANSWER
Answered 2021-Nov-05 at 02:2042681 INFO: PyInstaller: 4.6
42690 INFO: Python: 3.10.0
QUESTION
This question is about architecture more than coding.
Here's the case. In React sometimes we want to hide components. For example, when user opens new page in SPA, when some toast is closed, etc. We can hide them with adding display: none
. Or we can remove them from the virtual DOM.
ANSWER
Answered 2021-Sep-01 at 07:22Well if you want to use lifecycles there are workarounds for that as well. if you are using functional components then you can manage the rerenders using the dependency props.
Its true dom size can slow you down if you use it excessively https://web.dev/dom-size/ But is better if those components are constantly being updated rather then rendering a new component on demand.
If its a list of items and its gigantic i suggest you to take a look at https://react-window.vercel.app/#/examples/list/fixed-size or https://bvaughn.github.io/react-virtualized/#/components/List
QUESTION
My .eslintrc.json
is:
ANSWER
Answered 2022-Jan-11 at 17:06It looks like you have defined custom paths in your TypeScript config (usually tsconfig.json
). The import
plugin doesn't know about the correct location of the TypeScript config and hence cannot resolve those paths. What you need to do, is to specify the correct path to your TypeScript config via the project
parameter in the resolver options:
QUESTION
I have been struggling all morning with this issue and couldn't find the solution anywhere. I am new to typescript, and I am trying to set it up properly with Eslint and Prettier to ensure the code is properly formated.
So, the issue I am facing when creating functional components. As per the cheatsheet, I am trying to export a simple component such as:
...ANSWER
Answered 2021-Nov-11 at 16:43Ok, so I don't know if it is the correct answer, but finally changing the settings in Eslint helped me to change the type of function for Components. I added the following rule to my .eslintrc.js file:
QUESTION
In light of recent malware in existing npm packages, I would like to have a mechanism that lets me do some basic checks before installing new packages or updating existing ones. My main issue are both the packages I install directly, and also the ones I install indirectly.
In general I want to get a list of package-version that npm would install before installing it. More specifically I want the age of the packages that would be installed, so I can generate a warning if any of them is less than a day old.
If I could do that directly with npm, that would be neat, but I'm afraid I need to do some scripting around it.
specific use case:
If I executed npm install react-native-gesture-handler
on 2021-10-22 it would have executed the post-install hook of a malicious version of ua-parser and my computer would have been compromised, which is something I would like to avoid.
When I enter npm install react-native-gesture-handler --dry-run
, it only tells me which version of react-native-gesture-handler it would have installed, but it would not tell me that it would install a version of ua-parser that was released on that day.
additional notes:
- I know that
npm i --dry-run
exists, but it shows only the direct packages. - I know that
npm list
exists, but it only shows packages after installing (and thus after install-hooks have already done their harm) - both only show packages version and not their age
- I do not know how I would get a list of packages that would come with a install-hook before installing them
- pointers to alternative ways to deal with malicious npm packages are welcome.
- so far my best solution would be to do "--ignore-scripts" but that would come with it's own set of problems
ANSWER
Answered 2021-Dec-07 at 07:26To find out the malicious package, you will need a script that will check your package for vulnerabilities against national vulnerabilities database
The National Vulnerability Database includes databases of security checklist references, security related software flaws, misconfigurations, product names, and impact metrics.
Mostly all software companies use application security tools like Veracode, Snyk or Checkmarx that does this usually in a stage before deployment in the CICD pipeline.
If you're looking to achieve this locally, you can try
QUESTION
Say we have component:
...ANSWER
Answered 2021-Dec-12 at 10:39Here are some implications of calling component as function vs rendering it as element.
- Potential violation of rules of hooks
When you call a component as a function (see TestB()
below) and it contains usage of hooks inside it, in that case react thinks the hooks within that function belongs to the parent component. Now if you conditionally render that component (TestB()
) you will violate one of the rules of hooks. Check the example below, click the re-render button to see the error:
Error: Rendered fewer hooks than expected. This may be caused by an accidental early return statement.
QUESTION
I have a simple chat app using Firebase v9, with these components from parent to child in this hierarchical order: ChatSection
, Chat
, ChatLine
, EditMessage
.
I have a custom hook named useChatService
holding the list of messages
in state, the hook is called in ChatSection
, the hook returns the messages
and I pass them from ChatSection
in a prop to Chat
, then I loop through messages
and create a ChatLine
component for every message.
I can click the Edit
button in front of each message, it shows the EditMessage
component so I can edit the text, then when I press "Enter", the function updateMessage
gets executed and updates the message in the db, but then every single ChatLine
gets rerendered again, which is a problem as the list gets bigger.
EDIT 2: I've completed the code to make a working example with Firebase v9 so you can visualize the rerenders I'm talking about after every (add, edit or delete) of a message. I'm using ReactDevTools Profiler to track rerenders.
- Here is the full updated code: CodeSandbox
- Also deployed on: Netlify
ChatSection.js
:
ANSWER
Answered 2021-Dec-13 at 23:35This is what I think, You are passing Messages
in ChatSection
and that means that when Messages
get updated ChatSection
will rerender and all its children will rerender too.
So here is my idea remove Messages
from ChatSection
and only add it in Chat
.
You already using useChatService
in Chat so adding Messages
there should be better.
Try this and gets back too us if it working.
If still not as you like it to be there is also other way we could fix it.
But you have to create a working example for us so we could have a look and make small changes.
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