Filter the data only once in react hooks

Question

0.00/5 (No votes)

See more:

Is it something wrong in my code that's only filter the data once, and after that I got no data when I search it again.

What I have tried:

const results = data?.map(singleData => {
    singleData.websites = singleData.websites.filter(website =>
      website.name.toLowerCase().includes(searchedQuery.toLowerCase())
    );

Posted 16-Feb-22 10:31am

Beka Qi

Updated 17-Feb-22 5:44am

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard Deeming · Answer 1 · 2022-02-17T05:44:00

Your code is overwriting the websites property of the items in your source array with a filtered list.

Change it to return the filtered list instead:

JavaScript

const results = data?.map(singleData => singleData.websites.filter(website => website.name.toUpperCase().includes(searchQuery.toUpperCase())));

NB: You should generally normalize strings to upper-case for comparison, to avoid the "Turkish i" problem[^].