Module

std/io/mod.ts

Deno standard library
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import * as mod from "https://deno.land/std@0.109.0/io/mod.ts";

Classes

A variable-sized buffer of bytes with read() and write() methods.

BufReader implements buffering for a Reader object.

BufWriter implements buffering for an deno.Writer object. If an error occurs writing to a Writer, no more data will be accepted and all subsequent writes, and flush(), will return the error. After all data has been written, the client should call the flush() method to guarantee all data has been forwarded to the underlying deno.Writer.

BufWriterSync implements buffering for a deno.WriterSync object. If an error occurs writing to a WriterSync, no more data will be accepted and all subsequent writes, and flush(), will return the error. After all data has been written, the client should call the flush() method to guarantee all data has been forwarded to the underlying deno.WriterSync.

A LimitedReader reads from reader but limits the amount of data returned to just limit bytes. Each call to read updates limit to reflect the new amount remaining. read returns null when limit <= 0 or when the underlying reader returns null.

Reader utility for combining multiple readers

Reader utility for strings

Writer utility for buffering string chunks

Functions

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.

Copy N size at the most. If read size is lesser than N, then returns nread

Turns a Reader, r, into an async iterator.

Turns a ReaderSync, r, into an iterator.

Create a ReadableStream from any kind of iterable.

Create a ReadableStream<Uint8Array> from from a Deno.Reader.

Read Reader r until EOF (null) and resolve to the content as Uint8Array`.

Synchronously reads Reader r until EOF (null) and returns the content as Uint8Array.

Read delimited bytes from a Reader.

Create a Deno.Reader from an iterable of Uint8Arrays.

Create a Reader from a ReadableStreamDefaultReader.

Read big endian 32bit integer from BufReader

Read strings line-by-line from a Reader.

Read big endian 64bit long from BufReader

Read a range of bytes from a file or other resource that is readable and seekable. The range start and end are inclusive of the bytes within that range.

Read a range of bytes synchronously from a file or other resource that is readable and seekable. The range start and end are inclusive of the bytes within that range.

Read big endian 16bit short from BufReader

Read delimited strings from a Reader.

Slice number into 64bit big endian byte array

Create a WritableStream from a Writer.

Write all the content of the array buffer (arr) to the writer (w).

Synchronously write all the content of the array buffer (arr) to the writer (w).

Create a Writer from a WritableStreamDefaultWriter.