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dev: add warning when context is undefined #2466

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dev: add warning when context is undefined #2466

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9f6e6b3
dev: add warning when context is null
Tommypop2 Apr 8, 2025
bc6c19b
dev: update context warning
Tommypop2 Apr 8, 2025
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8 changes: 5 additions & 3 deletions packages/solid/src/reactive/signal.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1201,9 +1201,11 @@ export function createContext<T>(
*/
export function useContext<T>(context: Context<T>): T {
let value: undefined | T;
return Owner && Owner.context && (value = Owner.context[context.id]) !== undefined
? value
: context.defaultValue;
let ctx = Owner && Owner.context && (value = Owner.context[context.id]) !== undefined
? value
: context.defaultValue;
IS_DEV && !ctx && console.warn("`useContext` is returning undefined. Is it being called inside a provider?")
return ctx;
}

export type ResolvedJSXElement = Exclude<JSX.Element, JSX.ArrayElement>;
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