deno_runtime 0.80.0

Provides the deno runtime library
Documentation 
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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
"use strict";

((window) => {
  const { TypeError, Symbol } = window.__bootstrap.primordials;
  const illegalConstructorKey = Symbol("illegalConstructorKey");

  function requiredArguments(
    name,
    length,
    required,
  ) {
    if (length < required) {
      const errMsg = `${name} requires at least ${required} argument${
        required === 1 ? "" : "s"
      }, but only ${length} present`;
      throw new TypeError(errMsg);
    }
  }

  window.__bootstrap.webUtil = {
    illegalConstructorKey,
    requiredArguments,
  };
})(this);