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Module

std/io/mod.ts>Buffer#readFrom

Deno standard library
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method Buffer.prototype.readFrom
Re-export
import { Buffer } from "https://deno.land/std@0.114.0/io/mod.ts";

Reads data from r until EOF (null) and appends it to the buffer, growing the buffer as needed. It resolves to the number of bytes read. If the buffer becomes too large, .readFrom() will reject with an error.

Based on Go Lang's Buffer.ReadFrom.

Returns

Promise<number>