function Deno.copy


      copy(src: Reader, dst: Writer, options?: { bufSize?: number;  }): Promise<number>

Copies from src to dst until either EOF (null) is read from src or an error occurs. It resolves to the number of bytes copied or rejects with the first error encountered while copying.

Parameters

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            src: Reader

The source to copy from

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            dst: Writer

The destination to copy to

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            options: { bufSize?: number;  }

Can be used to tune size of the buffer. Default size is 32kB

Return Type

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            Promise<number>