Web我正在嘗試從狀態中提取數據。 我正在使用 redux。 const currentPost useSelector state gt state.posts 我希望得到一個具有屬性的對象。 相反，我得到了幾個 undefined 然后我得到 … WebJun 21, 2024 · You can try removing the line const { navigate } = this.props.navigation; and using onPress= { () => this.props.navigation.navigate ('Chat')} so it will access the object only later. For me the navigation works fine, just needed to import View from react-native, but I am not running it in Expo.
javascript - React useSelector 首先返回未定義，然后返回對象 - 堆 …
WebApr 10, 2024 · One possible issue could be with the data object that is returned from the useFetchPost hook. The data object has a pages property, which suggests that it is being used with the useInfiniteQuery hook from React Query. The pages property is an array of pages, where each page has a data property that contains the actual data. Web1 Answer. You are invoking the function instead of passing a reference through bind. loose the (). By the way, this will return and create a function instance on each render, you should do it once in the constructor (which runs only once): export default class App extends React.Component { constructor (props) { super (props); this.btnPress ... crypto the end of freedom
react-native - Picker - undefined is not an object (evaluating
Web9 hours ago · I'm trying to loop over an Object in React, the object is being received from an API, I need to get the url 'regular' link. I have a state that sets the response from the API called 'searchImages', I have been trying the following: WebAug 12, 2024 · As you basically have shown in your pseudo-answer ( which is more of a comment ) the amount of debugging details shared by the OP is not enough for us to … WebJan 13, 2024 · I am building a simple React-native app with Expo for rating Github repositories and ran into a nasty issue. When I am trying to render a list of the repositories with Flatlist it throws me the following error: undefined is not an object (evaluating 'repository.fullName'); although my code is pretty much identical to the one in React-native … crystal arcemont mylife