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#params in props not working with typescript
sonic craneBOT
When using TypeScript with Next.js, you can add types for params depending on your configured route segment. This is done by including the params in the props of your component and providing a type definition for it.
Here's an example:
export default function Page({ params }: { params: { slug: string } }) {
return <h1>My Page</h1>
}
In this example, the params prop is typed as an object with a slug property of type string. The type definition will depend on the dynamic segments in your route. For instance, if your route is app/shop/[...slug]/page.js, the params type definition would be { slug: string[] }.
This practice allows TypeScript to provide autocompletion and error checking based on the types you've defined, making your code safer and easier to maintain.
You can find more information about this in the Next.js documentation on dynamic routes (https://nextjs.org/docs/app/building-your-application/routing/dynamic-routes).
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raven field
@sonic crane what if I have multiple props as well as params and its a child component in client side rendering
sonic craneBOT
Let me check the knowledge base for you. One moment! :books:
If you have multiple props as well as params in a child component, you can define a type for each prop and include them in your component's props. Here's an example:
type Props = {
params: { slug: string },
otherProp: string,
anotherProp: number
}
export default function ChildComponent({ params, otherProp, anotherProp }: Props) {
// Your component logic here
}
In this example, Props is a type that includes params, otherProp, and anotherProp. Each of these has its own type: params is an object with a slug property of type string, otherProp is a string, and anotherProp is a number.
When you use the ChildComponent, you would pass these props like so:
<ChildComponent params={{ slug: 'example' }} otherProp="Hello" anotherProp={42} />
This practice allows TypeScript to provide autocompletion and error checking based on the types you've defined, making your code safer and easier to maintain.
Remember, when passing data between a Server and Client Component through props, the data is still serialized (converted to a string) for use in the browser. However, it does not need a special type. It’s typed the same as passing any other props between components. You can find more information about this in the Next.js documentation on passing data between server and client components (https://nextjs.org/docs/app/building-your-application/configuring/typescript).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
raven field
@sonic crane does that mean that the client side rendered component has no way of determining the params by itself
sonic craneBOT
Let me check the knowledge base for you. One moment! :books:
In Next.js, a client-side rendered component can indeed determine the params by itself using the useParams hook. This hook lets you read a route's dynamic params filled in by the current URL. Here's an example:
'use client'
import { useParams } from 'next/navigation'
export default function ExampleClientComponent() {
const params = useParams()
// Route -> /shop/[tag]/[item]
// URL -> /shop/shoes/nike-air-max-97
// `params` -> { tag: 'shoes', item: 'nike-air-max-97' }
console.log(params)
return <></>
}
In this example, useParams is used to get the dynamic params from the current URL. The params object will contain the dynamic parts of the route as key-value pairs.