Saving data to local storage in React - reactjs

So I have those cards on the link right now. When the favorite button is clicked it will appear under FAVORITES. I wanted those cards under FAVORITES to be on the local storage, and when I "unfavorite" the cards, they should also be removed from the local storage. But how exactly do I do that? Should I use useEffect()?
Codesandbox: https://codesandbox.io/s/broken-fast-kgyzvc?file=/src/App.js
App.js
export default function App() {
const [all, setAll] = useState(true);
const [favorites, setFavorites] = useState(false);
const showAll = () => {
setAll(true);
setFavorites(false);
};
const showFavorite = () => {
setFavorites(true);
setAll(false);
};
const [dataSource, setDataSource] = useState(data);
const onFavorite = (cardId) => {
const newDataSource = [...dataSource];
const foundCardData = newDataSource.find((card) => card.id === cardId);
if (!foundCardData) return;
foundCardData.isFavorite = !foundCardData.isFavorite;
setDataSource(newDataSource);
};
return (
<div className="App">
<div className="button-group">
<button className={all ? "all active" : "all"} onClick={showAll}>
ALL
</button>
<button
className={favorites ? "favorites active" : "favorites"}
onClick={showFavorite}
>
FAVORITES
</button>
</div>
<br />
<Masonry
breakpointCols={3}
className="my-masonry-grid"
columnClassName="my-masonry-grid_column"
>
{all &&
dataSource.map((item) => (
<Cards
key={item.id}
text={item.text}
isFavorite={item.isFavorite}
onFavorite={() => onFavorite(item.id)}
/>
))}
{favorites &&
dataSource
.filter((item) => item.isFavorite === true)
.map((filtered) => (
<Cards
key={filtered.id}
text={filtered.text}
isFavorite={filtered.isFavorite}
onFavorite={() => onFavorite(filtered.id)}
/>
))}
</Masonry>
</div>
);
}
Cards.js
const Cards = ({ text, isFavorite, onFavorite }) => {
return (
<div className="cards">
<p>{text}</p>
<button onClick={onFavorite}>
{isFavorite ? "Added to Favorites!" : "Favorite"}
</button>
</div>
);
};

Related

How can I use a show more posts button

I just wan't to hide show more posts button if there aren't any posts. so I created showLoad function and isLoad state but I have no idea how to use this.
the show button is on the isLoad ? section. thank you for your help!
posts.tsx
const [loadMore, setLoadMore] = useState<number>(4);
const [activeMenu, setActiveMenu] = useState<string>("All");
const [isLoad, setIsLoad] = useState(false);
function getFilteredList() {
if (activeMenu === "All") {
return projectschema;
}
return projectschema.filter(
(project) => project.categories.title === activeMenu
);
}
const showMoreItems = () => {
setLoadMore((prevValue) => prevValue + 4);
};
useEffect(() => {
const showLoadButton = () => {
if (loadMore > 4) {
setIsLoad(true);
}
};
showLoadButton();
}, [loadMore]);
const filteredList = useMemo(getFilteredList, [activeMenu, projectschema]);
{filteredList.slice(0, loadMore).map((project) => (
<Link
key={project._id}
>
<section className={styles.project__item}>
test
</section>
</Link>
))}
{isLoad ? (
<>
<div className={styles.load__more}>
<div className={styles.load__icon} onClick={showMoreItems}>
<SVGCustomIcon name="LoadMore" />
</div>
</div>
</>
) : (
""
)}
you don't need to use isLoad state, you can check if the filteredList.length > 4 and loadMore <= filteredList.length), so your loadMore icon will be showed otherwise hidden.
{((filteredList.length > 4) && (loadMore <= filteredList.length)) ? (
<>
<div className={styles.load__more}>
<div className={styles.load__icon} onClick={showMoreItems}>
<SVGCustomIcon name="LoadMore" />
</div>
</div>
</>
) : (
""
)}

Onclick function only works when I Click twice

I have this Little list that should show different modals based on what the user select , and the problem is When I select the first time it doesn't work and I have to click on it again to work .
Here is my code :
const Mylist = props => {
const [open2, setOpen2] = React.useState(false);
const [open3, setOpen3] = React.useState(false);
const handleClose2 = () => {
setOpen2(false);
};
const handleOpen2 = () => {
setOpen2(true);
};
const handleClose3 = () => {
setOpen3(false);
};
const handleOpen3 = () => {
setOpen3(true);
};
const [isActive , SetIsActive] = useState(false);
const option =["Paid" , "UnPaid"]
return (
<div>
<i class="fas fa-ellipsis-v" onClick={(e) => SetIsActive(!isActive)}></i>
{isActive && (
<div>
{option.map((option) => (
<div
onClick={(e) => {
SetIsActive(false);
{option == 'Paid' && setOpen2(true)}
{option == 'UnPaid' && setOpen3(true)}
}}
>
{option}
</div>
))}
<Modal onClose={handleClose2} open={open2} >
<div>
Content
</div>
</Modal>
<Modal onClose={handleClose3} open={open3} >
<div>
Content
</div>
</Modal>
Your code block is a bit messy with some brackets and closing tags missing (possibly some of the code was not copied in by mistake?).
In any case, I did my best at trying to fill in the missing parts and did some refactoring to your code. I hope that fixes your bug!
import React, { useState } from 'react';
const MyList = (props) => {
const [isOpen1, setIsOpen1] = useState(false);
const [isOpen2, setIsOpen2] = useState(false);
const [isActive, setIsActive] = useState(false);
const openOption = (option) => {
setIsActive(false);
if (option === "Paid") {
setIsOpen1(true);
}
if (option === "UnPaid") {
setIsOpen2(true);
}
};
const options =["Paid", "UnPaid"]
return (
<div>
<i class="fas fa-ellipsis-v" onClick={() => setIsActive(!isActive)}></i>
{isActive && (
<div>
{options.map((option) => (
<div onClick={() => openOption(option)}>
{option}
</div>
))}
</div>
)}
<Modal onClose={() => setIsOpen1(false)} open={isOpen1} >
<div>
Content
</div>
</Modal>
<Modal onClose={() => setIsOpen2(false)} open={isOpen2} >
<div>
Content
</div>
</Modal>
</div>
);
};

Show and hide selected div element via .map()

Every video I've seen regarding to showing or hiding a div, is quite not effective at all if you're making use of a state that's based on true or false, thus when a button is clicked through the .map() all elements that are hidden would be shown, therefore it wouldn't be in great use of all, I guess that's why the element's index should be in use to determine which element should shown or hidden right?
Scenario
So I'm building a social platform for a learning experience, where I map through all my posts in an array, once I click my comment Icon, the comments should be shown for that post, but unfortunately I'm unable to find a solution regarding to the use of functional components.
this is what I have:
import React, { useState, useEffect, useReducer, useRef, useMemo } from "react";
import axios from "axios";
import Cookies from "universal-cookie";
import "../../styles/private/dashboard.css";
import DashboardHeader from "../../components/private/templates/header";
import DashboardSidebar from "../../components/private/templates/sidebar";
import ImageSearchIcon from "#material-ui/icons/ImageSearch";
import VideoLibraryIcon from "#material-ui/icons/VideoLibrary";
import FavoriteIcon from "#material-ui/icons/Favorite";
import SendIcon from "#material-ui/icons/Send";
import { Avatar } from "#material-ui/core";
import { useSelector, useDispatch } from "react-redux";
import { newPost } from "../../redux/actions/posts/new-post";
import { likePost } from "../../redux/actions/posts/like-post";
import { getPosts } from "../../redux/actions/posts/get-posts";
import { unlikePost } from "../../redux/actions/posts/unlike-post";
import { getPostLikes } from "../../redux/actions/posts/get-likes";
import { likePostComment } from "../../redux/actions/posts/like-comment";
import { unlikePostComment } from "../../redux/actions/posts/unlike-comment";
import { newPostComment } from "../../redux/actions/posts/new-post-comment";
import ChatBubbleOutlineIcon from "#material-ui/icons/ChatBubbleOutline";
import LoopIcon from "#material-ui/icons/Loop";
import FavoriteBorderIcon from "#material-ui/icons/FavoriteBorder";
import MoreHorizIcon from "#material-ui/icons/MoreHoriz";
import Pusher from "pusher-js";
import FlipMove from "react-flip-move";
import PropTypes from "prop-types";
import { connect } from "react-redux";
import io from "socket.io-client";
const socket = io.connect("http://localhost:5000");
function Dashboard({
history,
getPost,
getLike,
getAllPosts,
getAllLikes,
likePosts,
unlikePosts,
}) {
const [participants, setParticipants] = useState({});
const cookies = new Cookies();
const [toggle, setToggle] = useState(false);
const [messages, setMessages] = useState("");
const [media, setMedia] = useState(null);
const [posts, setPosts] = useState([]);
const [error, setError] = useState("");
const [comment, setComment] = useState();
const userLogin = useSelector((state) => state.userLogin);
const { user } = userLogin;
const [uname, setUname] = useState(user.name);
const [upic, setUpic] = useState(user.pic);
const dispatch = useDispatch();
const config = {
headers: {
"Content-Type": "application/json",
Authorization: `Bearer ${user.token}`,
},
};
useEffect(() => {
if (!cookies.get("authToken")) {
history.push("/login");
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [history]);
useEffect(() => {
axios.get("/api/post/posts", config).then((response) => {
setPosts(response.data);
});
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
useEffect(() => {
const handler = (item) => {
setPosts((oldPosts) => {
const findItem = oldPosts.find((post) => post._id === item._id);
if (findItem) {
return oldPosts.map((post) => (post._id === item._id ? item : post));
} else {
return [item, ...oldPosts];
}
});
};
socket.on("posts", handler);
return () => socket.off("posts", handler);
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
const postHandler = (e) => {
e.preventDefault();
dispatch(newPost(uname, upic, messages, media));
setMessages("");
};
const LikePost = (postId) => {
likePosts(postId, user._id, user.name, user.pic);
};
const UnlikePost = (postId) => {
unlikePosts(postId);
};
const submitComment = (postId) => {
dispatch(newPostComment(postId, uname, upic, comment));
setComment("");
};
const LikeCommentPost = (postId, commentId) => {
dispatch(likePostComment(postId, commentId, user._id, user.name, user.pic));
};
const UnlikeCommentPost = (postId, commentId) => {
dispatch(unlikePostComment(postId, commentId));
};
return error ? (
<span>{error}</span>
) : (
<div className="dashboard">
<DashboardHeader />
<div className="dashboard__container">
<div className="dashboard__sidebar">
<DashboardSidebar />
</div>
<div className="dashboard__content">
<div className="dashboard__contentLeft">
<div className="dashboard__messenger">
<div className="dashboard__messengerTop">
<Avatar src={user.pic} className="dashboard__messengerAvatar" />
<input
type="text"
placeholder={`What's on your mind, ${user.name}`}
value={messages}
onChange={(e) => setMessages(e.target.value)}
/>
<SendIcon
className="dashboard__messengerPostButton"
onClick={postHandler}
/>
</div>
<div className="dashboard__messengerBottom">
<ImageSearchIcon
className="dashboard__messengerImageIcon"
value={media}
onChange={(e) => setMedia((e) => e.target.value)}
/>
<VideoLibraryIcon className="dashboard__messengerVideoIcon" />
</div>
</div>
<div className="dashboard__postsContainer">
<FlipMove>
{posts.map((post, i) => (
<div className="dashboard__post" key={i}>
<MoreHorizIcon className="dashboard__postOptions" />
<div className="dashboard__postTop">
<Avatar
className="dashboard__postUserPic"
src={post.upic}
/>
<h3>{post.uname}</h3>
</div>
<div className="dashboard__postBottom">
<p>{post.message}</p>
{media === null ? (
""
) : (
<div className="dashboard__postMedia">{media}</div>
)}
</div>
<div className="dashboard__postActions">
{toggle ? (
<ChatBubbleOutlineIcon
onClick={() => setToggle(!toggle)}
className="dashboard__actionComment"
/>
) : (
<ChatBubbleOutlineIcon
onClick={() => setToggle(!toggle)}
className="dashboard__actionComment"
/>
)}
<label
id="totalLikes"
className="dashboard__comments"
style={{ color: "forestgreen" }}
>
{post.commentCount}
</label>
{post.likes.find((like) => like.uid === user._id) ? (
<FavoriteIcon
onClick={() => UnlikePost(post._id)}
className="dashboard__actionUnlike"
/>
) : (
<FavoriteBorderIcon
onClick={() => LikePost(post._id)}
className="dashboard__actionLike"
/>
)}
<label
id="totalLikes"
className="dashboard__likes"
style={{ color: "forestgreen" }}
>
{post.likeCount}
</label>
</div>
<div
className={
toggle
? "dashboard__commentContent toggle"
: "dashboard__commentContent"
}
>
<div className="dashboard__postComments">
{post.comments.map((comment) => (
<div
key={comment.toString()}
className="dashboard__postComment"
>
<div className="dashboard__postCommentTop">
<Avatar src={comment.upic} />
<h4>{comment.uname}</h4>
</div>
<p>{comment.message}</p>
<div className="dashboard__postCommentActions">
{comment.likes.find(
(like) => like.uid === user._id
) ? (
<FavoriteIcon
onClick={() =>
UnlikeCommentPost(post._id, comment._id)
}
className="dashboard__actionUnlike"
/>
) : (
<FavoriteBorderIcon
onClick={() =>
LikeCommentPost(post._id, comment._id)
}
className="dashboard__actionLike"
/>
)}
<label
id="totalLikes"
className="dashboard__likes"
style={{ color: "forestgreen" }}
>
{comment.likeCount}
</label>
</div>
</div>
))}
</div>
<div className="dashboard__commentInput">
<input
type="text"
placeholder="Comment post"
value={comment}
onChange={(e) => setComment(e.target.value)}
/>
<button onClick={() => submitComment(post._id)}>
Send
</button>
</div>
</div>
</div>
))}
</FlipMove>
</div>
</div>
<div className="dashboardContentRight"></div>
</div>
</div>
</div>
);
}
Dashboard.propTypes = {
getLike: PropTypes.arrayOf(PropTypes.string),
getPost: PropTypes.arrayOf(PropTypes.string),
likePost: PropTypes.arrayOf(PropTypes.string),
unlikePost: PropTypes.arrayOf(PropTypes.string),
};
function mapStateToProps(state) {
return {
getPost: getPosts(state),
getLike: getPostLikes(state),
likePosts: likePost(state),
unlikePosts: unlikePost(state),
};
}
function mapDispatchToProps(dispatch) {
return {
getAllPosts: (posts) => dispatch(getPosts(posts)),
getAllLikes: (likes) => dispatch(getPostLikes(likes)),
likePosts: (like) => dispatch(likePost(like)),
unlikePosts: (like) => dispatch(unlikePost(like)),
};
}
export default connect(mapStateToProps, mapDispatchToProps)(Dashboard);
Extra
here is a unlisted video from youtube, just for incase that you do not understand.
You have a lot of code going there... You should refactor that i smaller component, more easier to read and maintainability.
You can check there the answer i posted, it's the same core issue:
The axios delete functionality is only deleting last user from table, not the one I click on
your toggle is based on the global state, so each post doesn't have its proper way to see if it's open or not.That's why it will open everything
You need to tell which one is open and which ones aren't.
Here i refactored your code to make it work with multiple boxes open, i didn't test it on codesandbox, i let you try, but it wasn't big changes, so it should works.
Please pay attention to these news changes:
useState property openBoxes
Method toggleCommentBox
Method isCommentBoxOpen
I then replaced in your jsx the way you check if the comment box is open or not.
function Dashboard({
history,
getPost,
getLike,
getAllPosts,
getAllLikes,
likePosts,
unlikePosts,
}) {
const [participants, setParticipants] = useState({});
const cookies = new Cookies();
const [openBoxes, setOpenBoxes] = useState([]);
const [messages, setMessages] = useState("");
const [media, setMedia] = useState(null);
const [posts, setPosts] = useState([]);
const [error, setError] = useState("");
const [comment, setComment] = useState();
const userLogin = useSelector((state) => state.userLogin);
const {user} = userLogin;
const [uname, setUname] = useState(user.name);
const [upic, setUpic] = useState(user.pic);
const dispatch = useDispatch();
const config = {
headers: {
"Content-Type": "application/json",
Authorization: `Bearer ${user.token}`,
},
};
useEffect(() => {
if (!cookies.get("authToken")) {
history.push("/login");
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [history]);
useEffect(() => {
axios.get("/api/post/posts", config).then((response) => {
setPosts(response.data);
});
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
useEffect(() => {
const handler = (item) => {
setPosts((oldPosts) => {
const findItem = oldPosts.find((post) => post._id === item._id);
if (findItem) {
return oldPosts.map((post) => (post._id === item._id ? item : post));
} else {
return [item, ...oldPosts];
}
});
};
socket.on("posts", handler);
return () => socket.off("posts", handler);
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
/*
Toggle state of post boxes
*/
const toggleCommentBox = postId => {
if(openBoxes.includes(postId)){
setOpenBoxes(openBoxes.filter(x => x !== postId))
} else {
setOpenBoxes([...openBoxes, postId])
}
}
/*
Returns boolean if comment box is open on this post
*/
const isCommentBoxOpen = postId => openBoxes.includes(postId)
const postHandler = (e) => {
e.preventDefault();
dispatch(newPost(uname, upic, messages, media));
setMessages("");
};
const LikePost = (postId) => {
likePosts(postId, user._id, user.name, user.pic);
};
const UnlikePost = (postId) => {
unlikePosts(postId);
};
const submitComment = (postId) => {
dispatch(newPostComment(postId, uname, upic, comment));
setComment("");
};
const LikeCommentPost = (postId, commentId) => {
dispatch(likePostComment(postId, commentId, user._id, user.name, user.pic));
};
const UnlikeCommentPost = (postId, commentId) => {
dispatch(unlikePostComment(postId, commentId));
};
return error ? (
<span>{error}</span>
) : (
<div className="dashboard">
<DashboardHeader/>
<div className="dashboard__container">
<div className="dashboard__sidebar">
<DashboardSidebar/>
</div>
<div className="dashboard__content">
<div className="dashboard__contentLeft">
<div className="dashboard__messenger">
<div className="dashboard__messengerTop">
<Avatar src={user.pic} className="dashboard__messengerAvatar"/>
<input
type="text"
placeholder={`What's on your mind, ${user.name}`}
value={messages}
onChange={(e) => setMessages(e.target.value)}
/>
<SendIcon
className="dashboard__messengerPostButton"
onClick={postHandler}
/>
</div>
<div className="dashboard__messengerBottom">
<ImageSearchIcon
className="dashboard__messengerImageIcon"
value={media}
onChange={(e) => setMedia((e) => e.target.value)}
/>
<VideoLibraryIcon className="dashboard__messengerVideoIcon"/>
</div>
</div>
<div className="dashboard__postsContainer">
<FlipMove>
{posts.map((post, i) => (
<div className="dashboard__post" key={i}>
<MoreHorizIcon className="dashboard__postOptions"/>
<div className="dashboard__postTop">
<Avatar
className="dashboard__postUserPic"
src={post.upic}
/>
<h3>{post.uname}</h3>
</div>
<div className="dashboard__postBottom">
<p>{post.message}</p>
{media === null ? (
""
) : (
<div className="dashboard__postMedia">{media}</div>
)}
</div>
<div className="dashboard__postActions">
{isCommentBoxOpen(post.id) ? (
<ChatBubbleOutlineIcon
onClick={() => toggleCommentBox(post._id)}
className="dashboard__actionComment"
/>
) : (
<ChatBubbleOutlineIcon
onClick={() => toggleCommentBox(post._id)}
className="dashboard__actionComment"
/>
)}
<label
id="totalLikes"
className="dashboard__comments"
style={{color: "forestgreen"}}
>
{post.commentCount}
</label>
{post.likes.find((like) => like.uid === user._id) ? (
<FavoriteIcon
onClick={() => UnlikePost(post._id)}
className="dashboard__actionUnlike"
/>
) : (
<FavoriteBorderIcon
onClick={() => LikePost(post._id)}
className="dashboard__actionLike"
/>
)}
<label
id="totalLikes"
className="dashboard__likes"
style={{color: "forestgreen"}}
>
{post.likeCount}
</label>
</div>
<div
className={
toggle
? "dashboard__commentContent toggle"
: "dashboard__commentContent"
}
>
<div className="dashboard__postComments">
{post.comments.map((comment) => (
<div
key={comment.toString()}
className="dashboard__postComment"
>
<div className="dashboard__postCommentTop">
<Avatar src={comment.upic}/>
<h4>{comment.uname}</h4>
</div>
<p>{comment.message}</p>
<div className="dashboard__postCommentActions">
{comment.likes.find(
(like) => like.uid === user._id
) ? (
<FavoriteIcon
onClick={() =>
UnlikeCommentPost(post._id, comment._id)
}
className="dashboard__actionUnlike"
/>
) : (
<FavoriteBorderIcon
onClick={() =>
LikeCommentPost(post._id, comment._id)
}
className="dashboard__actionLike"
/>
)}
<label
id="totalLikes"
className="dashboard__likes"
style={{color: "forestgreen"}}
>
{comment.likeCount}
</label>
</div>
</div>
))}
</div>
<div className="dashboard__commentInput">
<input
type="text"
placeholder="Comment post"
value={comment}
onChange={(e) => setComment(e.target.value)}
/>
<button onClick={() => submitComment(post._id)}>
Send
</button>
</div>
</div>
</div>
))}
</FlipMove>
</div>
</div>
<div className="dashboardContentRight"></div>
</div>
</div>
</div>
);
}
Let me know if it works or you need more explanation

All other input data get clear when I remove an input

Hi i am working on a React application where there are four inputs.when a user add an input the element will be added to the wrapper.In the following code add operation works fine but remove operation is not working properly ,it is not removing the corresponding element.Another problem the values on the inputs fields not present when the component re-renders.so experts guide me how i can achieve removing the corresponding row when the remove button is clicked and the input values should not be reset when the component re-renders
So when I refresh the page and click to remove an input it will clear all other input data. How can I fix this problem ?
Update added full component to question:
const Agreement = (props) => {
const { agreement, editable, teamData, teamId, fetchTeamData } = props;
const [editing, setEditing] = useState(false);
const [title, setTitle] = useState("");
const [description, setDescription] = useState("");
const [showErrors, setShowErrors] = useState(false);
const [errorsArr, setErrorsArr] = useState();
const initialFormState = {
rule_0: teamData.rule_0,
rule_1: teamData.rule_1,
rule_2: teamData.rule_2,
rule_3: teamData.rule_3,
creator: teamData.User.public_user_id,
};
const [updateTeamData, setUpdateTeamData] = useState(initialFormState);
const [inputs, setInputs] = useState(teamData.rules);
const handleChange = (event) => {
const { name, value } = event.target;
// Update state
setUpdateTeamData((prevState) => ({
...prevState,
[name]: value,
}));
};
// Add more input
const addInputs = () => {
setInputs([...inputs, { name: `rule-${inputs.length + 1}` }]);
};
// handle click event of the Remove button
const handleRemoveClick = (index) => {
const list = [...inputs];
list.splice(index, 1);
setInputs(list);
};
const clearInput = (dataName) => {
setUpdateTeamData((prevState) => {
delete prevState[dataName];
return {
...prevState,
};
});
};
const handleSubmit = async (event) => {
event.preventDefault();
setEditing(false);
// Send update request
console.log(updateTeamData);
const res = await axios.put(`/api/v1/teams/team/${teamId}`, updateTeamData);
// If no validation errors were found
// Validation errors don't throw errors, it returns an array to display.
if (res.data.validationErrors === undefined) {
// Clear any errors
setErrorsArr([]);
// Hide the errors component
setShowErrors(false);
// Call update profiles on parent
fetchTeamData();
} else {
// Set errors
setErrorsArr(res.data.validationErrors.errors);
// Show the errors component
setShowErrors(true);
}
};
const handleCancel = () => {
setEditing(false);
};
useEffect(() => {
if (agreement === "default") {
setTitle(defaultTitle);
setInputs(teamData.rules);
} else {
setTitle(agreement.title ?? "");
}
}, [agreement, teamData]);
return (
<div className="team-agreement-container">
{!editing && (
<>
<h4 className="team-agreement-rules-title">{title}</h4>
{editable && (
<div className="team-agreement-rules">
<EditOutlined
className="team-agreement-rules-edit-icon"
onClick={() => setEditing(true)}
/>
</div>
)}
<p className="team-agreement-rules-description">{description}</p>
{teamData.rules.map((rule, index) => (
<div className="team-agreement-rule-item" key={`rule-${index}`}>
{rule ? (
<div>
<h4 className="team-agreement-rule-item-title">
{`Rule #${index + 1}`}
</h4>
<p className="team-agreement-rule-item-description">
- {rule}
</p>
</div>
) : (
""
)}
</div>
))}
</>
)}
{/* Edit rules form */}
{editing && (
<div className="team-agreement-form">
{showErrors && <ModalErrorHandler errorsArr={errorsArr} />}
<h1>Rules</h1>
{inputs.map((data, idx) => {
return (
<div className="agreement-form-grid" key={`${data}-${idx}`}>
<button
type="button"
className="agreement-remove-button"
onClick={() => {
handleRemoveClick(idx);
clearInput(`rule_${idx}`);
}}
>
<Remove />
</button>
<input
type="text"
placeholder={`Rule ${idx + 1}`}
defaultValue={teamData.rules[idx]}
name={`rule_${idx}`}
onChange={handleChange}
/>
</div>
);
})}
{inputs.length < 4 && (
<div className="team-agreement-add-rule">
<button type="submit" onClick={addInputs}>
<Add />
</button>
</div>
)}
<div className="div-button">
<button className="save-button" onClick={handleSubmit}>
Save
</button>
<button className="cancel-button" onClick={handleCancel}>
Cancel
</button>
</div>
</div>
)}
</div>
);
};
export default Agreement;

React Router: clicking on mapped items to a new page

I'm working on an ecommerce site. Currently, I have a page which maps over all of the items from the API and displays them on screen.
I'm trying to make it so that when one of the mapped items is clicked, the user will be taken to a new page ("Item") featuring just that item. I'm using React Router, but it's not working.
Any advice to get me in the right direction on how to implement this would be appreciated.
Please specifically see the return statement and how I added the Link routers.
import React, { useState, useEffect } from 'react';
import './../App.css';
import * as ReactBootStrap from 'react-bootstrap';
import {Link} from 'react-router-dom';
function Shop() {
const [products, setProducts] = useState([]);
const [filterProducts, setFilteredProducts] = useState([]);
const [item, setItem] = useState('');
const [currentSort, setCurrentSort] = useState('');
const [loading, setLoading] = useState(false);
useEffect(async () => {
fetchItems();
}, [])
const fetchItems = async () => {
const data = await fetch('https://fakestoreapi.com/products');
const items = await data.json();
setProducts(items)
setLoading(true)
}
function priceUSD(change){
return change.toFixed(2)
}
useEffect(() => {
const filteredItems = products.filter((a) => {
if (item === '') {return a} else {return a.category === item}
});
setFilteredProducts(filteredItems);
}, [item, products])
useEffect(() => {
if (currentSort === '') {
return
}
const sortedItems = filterProducts.sort((a, b) => {
return currentSort === 'ASE' ? a.price - b.price : b.price - a.price
});
setFilteredProducts([...sortedItems]);
}, [currentSort])
return (
<div>
<div className="itemSort">
<p onClick={() => setItem("")}>All items</p>
<p onClick={() => setItem("men clothing")}>Men clothing</p>
<p onClick={() => setItem("women clothing")}>Women clothing</p>
<p onClick={() => setItem("jewelery")}>Jewelery</p>
<p onClick={() => setItem("electronics")}>Electronics</p>
</div>
<div className="itemSort">
<p>Order by price</p>
<p onClick={() => setCurrentSort('DESC')}>Highest</p>
<p onClick={() => setCurrentSort('ASE')}>Lowest</p>
</div>
<div className="gridContainer">
{loading ? <Link to="/Item">
(filterProducts.map((a, index) => (
<div key={index} className="productStyle">
<img src={a.image} className="productImage"></img>
<p>{a.title}</p>
<p>${priceUSD(a.price)}</p>
</div>
))) </Link> : (<ReactBootStrap.Spinner className="spinner" animation="border" />)
}
</div>
</div>
)
}
export default Shop;
You need a route like /item/:id to have one page for one item and assuming that a product has an id:
<div className="gridContainer">
{loading ?
(filterProducts.map((a, index) => (
<Link to={`/Item/${a.id}`}>
<div key={index} className="productStyle">
<img src={a.image} className="productImage"></img>
<p>{a.title}</p>
<p>${priceUSD(a.price)}</p>
</div>
</Link>
:
(<ReactBootStrap.Spinner className="spinner" animation="border" />)
}
</div>

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