fix: make node detection a bit more forgiving (#1445)

* Make node detection a bit more forgiving

* reorder

* make sure we get a boolean

Author: dcodeIO

index.d.ts

@@ -1951,15 +1951,18 @@ export namespace util {
         public length(): number;
     }
 
+    /** Whether running within node or not. */
+    let isNode: boolean;
+
+    /** Global object reference. */
+    let global: object;
+
     /** An immuable empty array. */
     const emptyArray: any[];
 
     /** An immutable empty object. */
     const emptyObject: object;
 
-    /** Whether running within node or not. */
-    const isNode: boolean;
-
     /**
      * Tests if the specified value is an integer.
      * @param value Value to test

src/util/minimal.js

@@ -25,8 +25,23 @@ util.pool = require("@protobufjs/pool");
 // utility to work with the low and high bits of a 64 bit value
 util.LongBits = require("./longbits");
 
-// global object reference
-util.global = typeof global !== "undefined" && Object.prototype.toString.call(global) === "[object global]" && global
+/**
+ * Whether running within node or not.
+ * @memberof util
+ * @type {boolean}
+ */
+util.isNode = Boolean(typeof global !== "undefined"
+                   && global
+                   && global.process
+                   && global.process.versions
+                   && global.process.versions.node);
+
+/**
+ * Global object reference.
+ * @memberof util
+ * @type {Object}
+ */
+util.global = util.isNode && global
            || typeof window !== "undefined" && window
            || typeof self   !== "undefined" && self
            || this; // eslint-disable-line no-invalid-this
@@ -46,14 +61,6 @@ util.emptyArray = Object.freeze ? Object.freeze([]) : /* istanbul ignore next */
  */
 util.emptyObject = Object.freeze ? Object.freeze({}) : /* istanbul ignore next */ {}; // used on prototypes
 
-/**
- * Whether running within node or not.
- * @memberof util
- * @type {boolean}
- * @const
- */
-util.isNode = Boolean(util.global.process && util.global.process.versions && util.global.process.versions.node);
-
 /**
  * Tests if the specified value is an integer.
  * @function