Develop Reference

How can I add items to my cart without making a JS object?

When I started the project, I never thought of adding a cart, but now I want to.
Let me tell you the structure,
I have a jsx called Pricetag.jsx in which I have defined how my card will look like it has name, image, and add to cart.
Here is my Pricetag.jsx
import React from 'react'
import './Body.css'
// import './Cart.js'
import { useState } from 'react'
export default function Pricetag(props) {
const [count, setCartCount] = useState([]);
return (
<div>
<div className="card1">
<div className="image">
<img src={props.images} alt="" className='card-image' />
</div>
<div className="content">
<div className="name">
{props.name}
</div>
</div>
<div className="button">
<button className='btn no1' id='cartbutton' onClick={() => setCartCount(count + 1)} >
Add to cart
</button>
<br></br>
</div>
</div>
</div>
)
}
And this is the Birthday.jsx where I have used Pricetag information using props,
import React from 'react'
import './Body.css'
import { Link } from 'react-router-dom'
import Pricetag from './Pricetag'
import image80 from './assets/cake80.jpeg'
import image81 from './assets/cake81.jpeg'
export default function Cakebody(props) {
return (
<>
<Link to='/' className="menulink con112 ">
<div className='name1' >Back to home page</div>
</Link>
<div className="headingbody">
{props.title}
</div>
<hr className='latestline' />
<div className='container1'>
<Pricetag images={image80} name="Doll Cake" bold="Rs 345" cut="Rs 634" />
<Pricetag images={image81} name="Mixed Platte Cake" bold="Rs 345" cut="Rs 634" />
</div> </>
)
}
Now first I tried my self, then after watching some tutorials I noticed that they all are using objects to store data -> id, name, price, and all but, is there any way I can do it without it.
I want to some how grab the name and image of the cake from the birthday.jsx and want to send it to a new cart.jsx.

In fact JS is an object, everything in JS is kind of an object
if you find way to do something is JS without using object let me know

React Button Click should change the display value of div

I got a Navbar which has a button do change the display value of a login form. The Login form and the Login form is a diffrent file, the navbar is a diffrent file and the homepage where it should be display is a diffrent file. Those are the minimal variants of each so that you got some got to understand my problem in detail:
Homepage:
const HomePage = () => {
return (
<div>
<Navbar />
<Login />
<div id="content">
</div>
</div>
);
}
Navbar:
const Navbar= () => {
const showLogin = () => {
document.getElementById('Login').style.display='block';
}
return (
<div id="Navbar">
<NavLink activeClassName="active" to='/'><img src={logo}/></NavLink>
<ul>
...
</ul>
<ul>
<button onClick={showLogin}>Anmelden</button>
</ul>
</div>
);
}
Login-Form:
const Login = () => {
return (
<div id="Login">
<form>
<label>Anmelden</label>
<label for="username">Nutzername</label>
<input name="username" type="text"></input>
<label for="pw">Passwort</label>
<input name="pw" type="password"></input>
<button type="submit">Login</button>
</form>
</div>
);
}
Is there a way to achieve this, or would my easiest option be to include the Login source code into the Navbar source code?

You do not need to move your Login component inside Navbar. Keep it as it is.
You can use useState and Props to switch css classes to show/hide your Login component. I have created very simple solution for you in this CodeSandbox.
Steps:
Create two CSS classes hidden and block
In your Login component add a boolean prop which switches class hidden to block if true.
Create a prop for onClick in the Login component.
Create a useState inside your Homepage which holds a boolean value. That boolean value pass it to the Login page prop and then use onClick prop from Navbar to switch that boolean state

Yes, depending on your CSS system this is easily achievable just by using that.
The React solution is using refs.
The easy way is to create a ref in the parent component and then pass it down as a prop to both components:
In Homepage (i.e. parent), create a ref like so loginRef = useRef(); then pass it down as a prop to the 2 children.
In Login-Form.js you assign that prop on the div with id Login like so <div id='Login' ref={props.loginRef}>
Then in Navbar.js you can use that prop to change its display value like so const showLogin = () => {props.loginRef.current.style.display='block';}
NB: This is a fast and easy way, not best practice but it gets the work done. The best-practice here is to use forwardRef and - super advanced - useImperativeHandle. Take your time and go through the documentation when you're ready.

Login page will show "it is not active" first because active is set to false.but once you click on submit button it will show "it is active"
HomePage
const HomePage = () => {
const[active,setActive]=useState(false);
return (
<div>
<Navbar activesetter={setActive} />
<Login activestatus={active} />
<div id="content">
</div>
</div>
);
}
Login
const Login = (props) => {
return(
<div>
<div>
{props.activestatus ? "it is active" : "it is not active" }
</div>
</div>
);
}
Navbar
const Navbar = (props) => {
const handleSubmit=(e)=> {
e.preventDefault();
props.activesetter(true);
}
return(
<div>
<form onSubmit={handleSubmit}>
<button type="submit">Login</button>
</form>
</div>
);
}

how to use background image using props using reactjs

here is my code where i'm trying to pass object like{title,description,backgroundImg ....} to section component using props , I am getting all the key & value but when I use it on section component getting all data value instead of backgroundImg why..?
import React from "react";
import Section from "./Section";
function Home() {
return (
<div>
<div className="container">
<Section
title="Model S"
description="Order Online for Touchless Delivery"
backgroundImg="model-s.jpg"
leftButton="custom order"
rightButton="existing inventory"
/>
<Section
title="Model Y"
description="Order Online for Touchless Delivery"
backgroundImg="../images/model-y.jpg"
leftButton="custom order"
rightButton="existing inventory"
/>
</div>
);
}
export default Home;
to
import React from "react";
import DownArrow from "../images/down-arrow.svg";
const Section = (props) => {
return (
<div
className="Wrap"
style={{ backgroundImage: `url(${props.backgroundImg})` }}
>
<div className="item_text">
<h1>{props.title}</h1>
<p>{props.description}</p>
</div>
<div className="">
<div className="item_buttom">
<div className="leftButton">{props.leftButton}</div>
<div className="RightButton">{props.rightButton}</div>
</div>
<div>
<img src={DownArrow} alt="svgImg" className="DownArrow" />
</div>
</div>
</div>
);
};
export default Section;
My image folder path is "../images/..."

You need to import image in your home component.
Like
import sectionImage from "../images/image.jpg";
then pass the image like
<Section
backgroundImg={sectionImage}
/>
Then it should work fine.

How to pass a dynamic image path to a React card as a prop

I'm trying to pass an image path that is loaded from a database to a React card. I can't do an import (at least it hasn't worked) and I've tried to add require(props.avatar) with no luck. Here's the code and I know the path is hard coded, I haven't got to the database part yet, but this should still work somehow...
App.js looks like this:
class App extends React.Component {
render() {
return (
<div className="ui container comment main-list">
<HeaderCard></HeaderCard>
<SearchBar></SearchBar>
<MainCard className="main">
<MainDetail
Name="Baby Buntings!"
Date="11/12/20"
text="What up!"
**avatar="../images/benefit.jpg"**
Price="$20.00"
/>
</MainCard>
<MainCard>
.
. (more data)
.
MainDetail.js looks like this:
const MainDetail = props => {
console.log(props.avatar);
return (
<div className="comment main-time-place">
<a href="/">
**<img className="main-image" alt="benefit" src={props.avatar} />**
</a>
<div className="content">
<a href="/" className="author">
Featuring: {props.Name}
</a>
<div className="metadata">
<span className="date cardtext">Date: {props.Date}</span>
</div>
<div className="text cardtext">{props.text}</div>
<div className="price cardtext">Price: {props.Price}</div>
</div>
</div>
);
};
export default MainDetail;
This code has this:
src={props.avatar}
but I've also tried
src={require(props.avatar)}
If I do an import with a hard coded path, it works, but I can't do that...
This seems like it should be simple to do. The images are uploaded by users on another page so I won't know what they are in advance so I can't import them. (Or can I???).
Any suggestions would be appreciated. Thanks.

React pass ref throw functional components in different levels

I would like to scroll to menu element in a page.
I have the menu component which is not a parent of components to which I would like to scroll.
I have found this post that describe a similar problem
Passing ref to a child We want the ref to be attached to a dom element, not to a react component. So when passing it to a child
component we can't name the prop ref.
const myRef = useRef(null)
return <ChildComp refProp={myRef}></ChildComp> } ```
Then attach the ref prop to a dom element. ```jsx const ChildComp =
(props) => {
return <div ref={props.refProp} /> } ```
Here's my app structure
Menu component:
const MenuApp = () => {
return (
<div>
<div className="desktop-menu">
<div className="menu-item a-propos">
<p className='button'>Me découvrir</p>
</div>
<div className="menu-item competences">
<p className='button'>Compétences </p>
</div>
<div className="menu-item experiences">
<p className='button'>Experiences</p>
</div>
<div className="menu-item formation">
<p className='button'>Formation </p>
</div>
</div>
</div>
)
}
The parent is app component
<div className="App">
<div className="hero">
<HeaderApp />
<ApprochApp />
</div>
<Apropos />
<Competences />
<Experiences />
<Formation />
<Recom />
<Contact />
<Footer />
</div >
I would like that mu menus scrolls to the react components in the main App component
So how can I passe the reference from the menu component to the app and use it in components to scroll ?

I do not understand your problem completely though. However, one thing I can see from your question is that you're not forwarding the ref properly.
What you need in this case is forwardRef.
Basically, what you need to do is to create the childComponent as something like this:
const childComponent = React.forwardRef(({...otherProps}, ref) => {
return (<><div ref={ref}>Component content </div></>)
})
Where you need to use the component all you need to do is this:
const parentComponent = () => {
const reveiwsRef = React.useRef("");
return (
<div>
<childComponent ref={reviewsRef} />
</div>
);
}
You can find more info about this on the react documentation: Forwarding-Refs
I have hope this helps though