When attempting push notifications in expo react native, I encountered an error. I am using TypeScript.
This is the code I used: The error message indicates that "Property 'origin' does not exist on type '{}'.", and the same for ' data ". What could be causing this issue? I tried giving the data "as any", but it still did not work.
<Text>Origin: {(this.state.notification.origin)}</Text>
<Text>Data: {JSON.stringify(this.state.notification.data)}</Text>
When you fail to specify a type for the notification value in TypeScript, it will default to {}, which may not be what you intended.
const status = {
notification: {},
}
console.log(JSON.stringify(status.notification.data)). // The error message "Property 'data' does not exist on type '{}'" will be displayed.
console.log(status.notification.origin) // The error message "Property 'origin' does not exist on type '{}'" will be displayed.
On the other hand, if you define a type for notification in TypeScript, it will expect the specified properties (origin and data) to avoid errors when accessing them.
type TNotificationDetails = {
origin?: string;
data?: {
[key: string]: any
}
};
const status: {
notification: TNotificationDetails;
} = {
notification: {},
}
console.log(JSON.stringify(status.notification.data))
console.log(status.notification.origin)
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