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AHMED HAFDI
AHMED HAFDI

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navigation.navigate("somescreen") show errors with typescript and react-native

Argument of type 'string' is not assignable to parameter of type '{ key: string; params?: never; merge?: boolean; } | { name: never; key?: string; params: never; merge?: boolean; }'.ts(2345)

that happens always when we cant to navigate to anther screen with typescript in react-native an help ?
example of code :
navigation.navigate("page_2")} />

solution :

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AHMED HAFDI

solution

11 Tips That Make You a Better Typescript Programmer

typescript

1 Think in {Set}

Type is an everyday concept to programmers, but it’s surprisingly difficult to define it succinctly. I find it helpful to use Set as a conceptual model instead.

#2 Understand declared type and narrowed type

One extremely powerful typescript feature is automatic type narrowing based on control flow. This means a variable has two types associated with it at any specific point of code location: a declaration type and a narrowed type.

#3 Use discriminated union instead of optional fields

...

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