ReactJS. How to sort through data and find equal value of name property to id and store the object i-CodePudding

I have a database and I am trying to sort through the data in the database and find the one that has a name property equal to the id variable that I specified. The id variable works though I am having trouble sorting through and finding the name property equal to the id variable. This what I have tried:

import {useParams} from "react-router-dom";

function StudentInfo() {
    
    const {id} = useParams();
    var studentData = {};

    function infoGetter() {
    
        fetch(
            "{url that I put in real code}"
        )
        .then(response => response.json)
        .then(data => {

            Object.keys(data).filter((element) => {

                if (data[element].studentName.toLowerCase() === id.toLowerCase()) {
                    studentData = {
                        studentName: data[element].studentName,
                        yearGroup: data[element].yearGroup,
                        currentSchool: data[element].currentSchool,
                        parentOrGuardian: data[element].parentOrGuardian,
                        phoneNumber: data[element].phoneNumber,
                        homeAddress: data[element].homeAddress
                    };
                }

                return studentData;

            }).map((filteredElement) => data[filteredElement])
            
        })

    }
    
    
    return (

        <div className="btn-textfield">

            <button className="btn-textfield" onClick={infoGetter}>
                Id: {id}
                <br/><br/>
                StudentInfo:
                <br/><br/>
                {studentData.studentName}
                {studentData.yearGroup}
                {studentData.currentSchool}
                {studentData.parentOrGuardian}
                {studentData.phoneNumber}
                {studentData.homeAddress}
            </button>

        </div>

    );

}

export default StudentInfo;

I think the problem is assigning the value to the object or sorting through. I appreciate any responses.

CodePudding user response：

I am not actually sure why you filtering your data object without taking your student ID in your consideration, but what I am going to do is to

Object.keys(data).filter(element => element.id === id ).map(student => {
  // You will be able to find your current **student** right her
  console.log(student);
})

There is no need to use the Data object again in your if condition

CodePudding user response：

I also get this error when I click the button to run infoGetter():

index.js:1 Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.
    at SearchBar (http://localhost:3000/static/js/main.chunk.js:812:85)
    at div
    at MainPage
console.<computed> @ index.js:1
printWarning @ react-dom.development.js:67
error @ react-dom.development.js:43
warnAboutUpdateOnUnmountedFiberInDEV @ react-dom.development.js:23914
scheduleUpdateOnFiber @ react-dom.development.js:21840
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
scheduleUpdateOnFiber @ react-dom.development.js:21893
dispatchAction @ react-dom.development.js:16139
(anonymous) @ SearchBar.js:25
Promise.then (async)
searchHandler @ SearchBar.js:14
SearchBar @ SearchBar.js:49
renderWithHooks @ react-dom.development.js:14985
updateFunctionComponent @ react-dom.development.js:17356
beginWork @ react-dom.development.js:19063
beginWork$1 @ react-dom.development.js:23940
performUnitOfWork @ react-dom.development.js:22776
workLoopSync @ react-dom.development.js:22707
renderRootSync @ react-dom.development.js:22670
performSyncWorkOnRoot @ react-dom.development.js:22293
(anonymous) @ react-dom.development.js:11327
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
flushSyncCallbackQueueImpl @ react-dom.development.js:11322
flushSyncCallbackQueue @ react-dom.development.js:11309
flushPendingDiscreteUpdates @ react-dom.development.js:22372
flushDiscreteUpdates @ react-dom.development.js:22353
finishEventHandler @ react-dom.development.js:3714
batchedEventUpdates @ react-dom.development.js:3748
dispatchEventForPluginEventSystem @ react-dom.development.js:8507
attemptToDispatchEvent @ react-dom.development.js:6005
dispatchEvent @ react-dom.development.js:5924
unstable_runWithPriority @ scheduler.development.js:468
runWithPriority$1 @ react-dom.development.js:11276
discreteUpdates$1 @ react-dom.development.js:22413
discreteUpdates @ react-dom.development.js:3756
dispatchDiscreteEvent @ react-dom.development.js:5889