flow like the river

VISUALIZACION/node_modules/graphql/polyfills/arrayFrom.js

@@ -0,0 +1,57 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _symbols = require("./symbols.js");
+
+/* eslint-disable no-redeclare */
+// $FlowFixMe[name-already-bound]
+var arrayFrom = Array.from || function (obj, mapFn, thisArg) {
+  if (obj == null) {
+    throw new TypeError('Array.from requires an array-like object - not null or undefined');
+  } // Is Iterable?
+
+
+  var iteratorMethod = obj[_symbols.SYMBOL_ITERATOR];
+
+  if (typeof iteratorMethod === 'function') {
+    var iterator = iteratorMethod.call(obj);
+    var result = [];
+    var step;
+
+    for (var i = 0; !(step = iterator.next()).done; ++i) {
+      result.push(mapFn.call(thisArg, step.value, i)); // Infinite Iterators could cause forEach to run forever.
+      // After a very large number of iterations, produce an error.
+      // istanbul ignore if (Too big to actually test)
+
+      if (i > 9999999) {
+        throw new TypeError('Near-infinite iteration.');
+      }
+    }
+
+    return result;
+  } // Is Array like?
+
+
+  var length = obj.length;
+
+  if (typeof length === 'number' && length >= 0 && length % 1 === 0) {
+    var _result = [];
+
+    for (var _i = 0; _i < length; ++_i) {
+      if (Object.prototype.hasOwnProperty.call(obj, _i)) {
+        _result.push(mapFn.call(thisArg, obj[_i], _i));
+      }
+    }
+
+    return _result;
+  }
+
+  return [];
+};
+
+var _default = arrayFrom;
+exports.default = _default;