prsc.streamingoptional.md

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streamingOptional() function

Creates a StreamingParser that tries to apply the given parser optionally. It only yields the values produced by the inner parser if it matches successfully, and does not yield anything otherwise.

Signature:

export declare function streamingOptional<T>(parser: StreamingParser<T>): StreamingParser<T>;

Parameters

Parameter	Type	Description
parser	StreamingParser<T>	StreamingParser to attempt to apply

Returns:

StreamingParser<T>