Implement fetch() in Deno. Taken from Deno Docs, Getting Started.

testDeno.ts

/*
Run the following in command line:
deno run  --allow-net testDeno.ts https://www.wikipedia.org/   
From: https://deno.land/manual@v1.6.3/getting_started/first_steps
*/

const url = Deno.args[0]
const res = await fetch(url)

const body = new Uint8Array(await res.arrayBuffer())
await Deno.stdout.write(body)