JAVASCRIPT

${product} meaning in react js

<a href={'/product/${product._id}'}>
                    <Card.Img src={product.image}/>
                </a>

${product} meaning in react js

class Product extends Component{

    handleUpVote(id) {
      this.props.onVote(id)
    }

    ...


      <Product
        key={'product-'+product.id}
        id={product.id}
        onVote={() => this.handleProductUpVote(product.id)}
      />
}