zustand | 🐻 Bear necessities for state management in React | Frontend Framework library

 by   pmndrs TypeScript Version: 4.4.7 License: MIT

kandi X-RAY | zustand Summary

kandi X-RAY | zustand Summary

zustand is a TypeScript library typically used in User Interface, Frontend Framework, React applications. zustand has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

A small, fast and scalable bearbones state-management solution using simplified flux principles. Has a comfy api based on hooks, isn't boilerplatey or opinionated. Don't disregard it because it's cute. It has quite the claws, lots of time was spent to deal with common pitfalls, like the dreaded zombie child problem, react concurrency, and context loss between mixed renderers. It may be the one state-manager in the React space that gets all of these right.

            kandi-support Support

              zustand has a medium active ecosystem.
              It has 31826 star(s) with 995 fork(s). There are 143 watchers for this library.
              There were 9 major release(s) in the last 6 months.
              There are 4 open issues and 587 have been closed. On average issues are closed in 88 days. There are 3 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of zustand is 4.4.7

            kandi-Quality Quality

              zustand has 0 bugs and 0 code smells.

            kandi-Security Security

              zustand has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              zustand code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              zustand is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              zustand releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.
              It has 444 lines of code, 0 functions and 38 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of zustand
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            zustand Key Features

            No Key Features are available at this moment for zustand.

            zustand Examples and Code Snippets

            TypeScriptdot img1Lines of Code : 28dot img1no licencesLicense : No License
            copy iconCopy
            import { create } from 'zustand'
            import { withLenses, lens } from '@dhmk/zustand-lens'
            // set, get - global
            const useStore = create(withLenses((set, get, api) => {
              return {
                // set, get - only for storeA
                storeA: lens((set, get) => ({
            simple-zustand-devtools,Usage,mount more than one store
            TypeScriptdot img2Lines of Code : 14dot img2no licencesLicense : No License
            copy iconCopy
            import create from 'zustand';
            import { mountStoreDevtool } from 'simple-zustand-devtools';
            export const useSeparateStore = create((set, get) => {
              // create your zustand store here
            if (process.env.NODE_ENV === 'development') {
              let separat  
            TypeScriptdot img3Lines of Code : 2dot img3License : Permissive (MIT)
            copy iconCopy
            npm install zustand zustand-store-addons
            yarn add zustand zustand-store-addons

            Community Discussions


            Highlight rows programatically in AgGrid with React
            Asked 2022-Apr-01 at 11:59

            I am trying to use AgGrid together with a graph to display some data. AgGrid displays the data as a table, and then right next to it I am plotting the data on a chart for a visual representation.

            What I want to do is highlight rows in the table when I mouseover them on the graph. Using something like useState is really quite heavy and causes a full re-render which makes the table very jittery, so I would like to use something like Zustand with transient updates and then subscribe to the mouseover state.

            What I cannot figure out, is how I could just use the API to apply a class to the grid though. There are several ways to apply styles it seems, however no matter how I do it the outcome is not a smooth highlighting of the rows that should be highlighted.

            Has anyone tried to do something similar?



            Answered 2022-Apr-01 at 11:59

            While asking this question I tried to create a working example to show what I had some so far, and in doing so I actually solved the issue.

            The sandbox is here.

            The important part is the subscription to the state change from the zustand data store. From here we can call a function that uses the AgGrid API to set the row status to 'selected', which will highlight it for us.

            Source https://stackoverflow.com/questions/71706518


            nextjs ssr cause client side state persist conflict
            Asked 2022-Mar-17 at 05:56

            I use zustand to manage my states.

            I persist the width state in user local storage then reload and in console, I see an error like this :

            Prop style did not match. Server: "width:400px" Client: "width:385px"

            It's because the default state is 400, but it is 385 in client local storage and when it loads it makes conflict

            it gets worst when i try to persist a state that mount & unmount a component because default server state is mount but client state is unmount and it makes client crash



            Answered 2022-Mar-17 at 05:56

            In my case, this answer helps.


            When React do the rehydration phase, if the output rendered in the server side is different from the generated in the rehydration phase this makes React be confused and makes him render the output in a wrong way, so what you need to do is assure that the output generated by the server be exactly the same to the generated by the rehydration phase (that have access to browser apis, this is the reason why the output differs) and wait for the component to mount, that happens after the rehydration phase to make any changes based in-browser API or any other type of client-side data

            Your case

            Mind that initial state must be always same between server side and client side, and you can safely change the client side state (and react tree) after the component is mounted.

            Source https://stackoverflow.com/questions/69927850


            Error! Command "npm run build" exited with 1, while deploying a website using vercel command
            Asked 2022-Mar-07 at 16:55

            I am trying to deploy a website on vercel from my command line of VSCode by using the command:



            Answered 2022-Mar-07 at 16:03

            There are 2 ways to fix this problem.

            1. It seems that you are importing modules to some js files but not using them so avoid using unnecessary imports and only import a module when you are using it on the page. If you are not using it then avoid importing that module to the js file.

            1. Install the following module npm install --save-dev eslint-plugin-react. (for developers using NPM) or yarn add --dev eslint-plugin-react. (for developers using Yarn)

              Then, in your .eslintrc.json, under extends, include the following plugin:

            Source https://stackoverflow.com/questions/71383725


            scrapy spider won't start due to TypeError
            Asked 2022-Feb-27 at 09:47

            I'm trying to throw together a scrapy spider for a german second-hand products website using code I have successfully deployed on other projects. However this time, I'm running into a TypeError and I can't seem to figure out why.

            Comparing to this question ('TypeError: expected string or bytes-like object' while scraping a site) It seems as if the spider is fed a non-string-type URL, but upon checking the the individual chunks of code responsible for generating URLs to scrape, they all seem to spit out strings.

            To describe the general functionality of the spider & make it easier to read:

            1. The URL generator is responsible for providing the starting URL (first page of search results)
            2. The parse_search_pages function is responsible for pulling a list of URLs from the posts on that page.
            3. It checks the Dataframe if it was scraped in the past. If not, it will scrape it.
            4. The parse_listing function is called on an individual post. It uses the x_path variable to pull all the data. It will then continue to the next page using the CrawlSpider rules.

            It's been ~2 years since I've used this code and I'm aware a lot of functionality might have changed. So hopefully you can help me shine a light on what I'm doing wrong?

            Cheers, R.


            The code



            Answered 2022-Feb-27 at 09:47

            So the answer is simple :) always triple-check your code! There were still some commas where they shouldn't have been. This resulted in my allowed_domains variable being a tuple instead of a string.


            Source https://stackoverflow.com/questions/71276715


            How to use zustand to store the result of a query
            Asked 2022-Feb-24 at 12:39

            I want to put the authenticated user in a zustand store. I get the authenticated user using react-query and that causes some problems. I'm not sure why I'm doing this. I want everything related to authentication can be accessed in a hook, so I thought zustand was a good choice.

            This is the hook that fetches auth user:



            Answered 2022-Feb-24 at 12:39

            The misunderstanding here is that you don’t need to put data from react query into any other state management solution. React query is in itself a global state manager. You can just do:

            const { data } = useAuthUserQuery()

            in every component that needs the data. React query will automatically try to keep your data updated with background refetches. If you don’t need that for your resource, consider setting a staleTime.


            That being said, if you really want to put data from react-query into zustand, create a setter in zustand and call it in the onSuccess callback of the query:

            Source https://stackoverflow.com/questions/68690221


            Importing Class 'missing required positional arguments'?
            Asked 2022-Feb-11 at 12:50

            I am trying to create an instance of the class = Button. I understand that I have to initialize Button into my Menü class to use its variables. But PyCharm is telling me that 4 required positional arguments are missing. I am a beginner to Python/Pygame so if possible keep it simple:)



            Answered 2022-Feb-11 at 12:50

            The __init__ method in Button takes 5 arguments self, x, y, image, scale:

            Source https://stackoverflow.com/questions/71080300


            Laravel Livewire Select Field gets empty on render, but array still holds the selected value
            Asked 2022-Feb-07 at 19:09

            I have a strange behaviour on my Livewire Component Select Field, I am using an array which expands on click on button "add item". When I select in the field on my form a value it gets selected but disappears after calling the change function in my livewire script. If I select the value a second time it works. What I have: Blade:



            Answered 2022-Feb-07 at 19:09

            ... oh man what a baaad "bug", if I remove the Carbon->parse method from the Select field option it works as expected - I don't know why ... but it works now.

            Source https://stackoverflow.com/questions/71023740


            React - Updated prop in custom hook
            Asked 2022-Feb-04 at 11:56

            I have a custom hook that gives me a certain percentage of the scroll. I takes the values from the state-management solution Zustand. I'm using it inside a component to update some styles on elements on the page.

            The problem is that I only want to update these elements on a certain condition passed as prop of my component. And these conditions are not updated in my hook.

            I don't know how I should change it in order to get the updated condition.



            Answered 2022-Feb-04 at 11:56

            My guess is that you need to add the callback parameter to the list of properties useEffect is watching:

            Source https://stackoverflow.com/questions/70985768


            Adding persist middleware to zustand store
            Asked 2022-Jan-28 at 14:07

            I want to add a persist middleware to my useGlobalStore. I want to handle there (set and get) data for sessions store. I look through documentation but could not find an answer how to combine together my create and persist functions.

            Here is my useGlobalStore:



            Answered 2022-Jan-28 at 14:07


            TypeScript (react) : Dynamic update of object with spread operator
            Asked 2022-Jan-19 at 12:27

            I have a custom type set



            Answered 2022-Jan-19 at 12:27

            The problem is that key is of type string, and as you said, may be a string with a name that's not valid in the interface.

            If you're always supplying these names as hardcoded values as in your example, you an make it keyof Menu instead (which also has the convenient effect of TypeScript telling you when you call handleClick with an invalid value):

            Source https://stackoverflow.com/questions/70770446

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install zustand

            You can download it from GitHub.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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