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Module

x/proc/legacy/deps.ts>readLong

A high-level way to run child processes that is easy, flexible, powerful, and prevents resource leaks.
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function readLong
import { readLong } from "https://deno.land/x/proc@0.20.9/legacy/deps.ts";

Read big endian 64bit long from BufReader

Returns

Promise<number | null>