Conditional rendering of HTML elements based on boolean value React - html

Question

building a component that takes a value (attribute.readonly), and only displays the first 40 characters, unless the <Chevron onClick is triggered which means I then want to show fullDescription as opposed to the shortHeading - ideally this would render similar to how it does currently only doubling the height of the Accordion for example, to allow the rest of the content to fit. I know I'm still a bit off but some pointers for my next steps/ ideas for improving what I have already would be really appreciated!
// #flow
import styled from "styled-components";
import chevron from "../Assets/chevron-icon.svg";
type Props = { attribute: AttributeType, className?: string };
const Accordion = styled.div`
background-color: #e5e9eb;
height: 56px;
width: 612px;
border-radius: 2px;
border: 1px solid #27282a;
margin-bottom: 48px;
display: flex;
align-items: center;
span {
padding-left: 24px;
}
`;
const Chevron = styled.img`
height: 40px;
width: 40px;
float: right;
margin-right: 12px;
`;
const ExpandableString = ({ attribute, className }: Props) => {
const fullDescription = attribute.readonlyvalue;
const shortHeading = fullDescription.substring(0, 40) + '...';
const isExpanded = false;
function toggleContent() {
isExpanded = true;
}
return (
<Accordion className={className}>
<span>{shortHeading}</span>
<Chevron onClick={toggleContent} src={chevron} alt="Expand or collapse content" />
</Accordion>
);
};
export default ExpandableString;

Answer 1

Put your data in the state and toggle it
const ExpandableString = ({ attribute, className }: Props) => {
const [isExpanded, setIsExpanded] = React.useState(false);
function toggleContent() {
setIsExpanded(prev => !prev);
}
return (
<Accordion className={className}>
<span>{shortHeading}</span>
<Chevron onClick={toggleContent} src={chevron} alt="Expand or collapse content" />
</Accordion>
);
};
Then, according to the isExpanded state, you could conditionally render your React component.