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Module

x/env/env.js>Env#requireFirst

A utility for verifying environment variables are present
humanwhocodes/env
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method Env.prototype.requireFirst
import { Env } from "https://deno.land/x/env@v3.0.3/env.js";

Retrieves the first environment variable found in a list of environment variable names and throws an error if none of the variables are found.

Parameters

keys

An array of environment variable names.