1 files changed, 26 insertions, 0 deletions
diff --git a/node_modules/core-js/internals/collection-from.js b/node_modules/core-js/internals/collection-from.js
new file mode 100644
index 0000000..3bcf671
--- /dev/null
+++ b/node_modules/core-js/internals/collection-from.js
@@ -0,0 +1,26 @@
+'use strict';
+// https://tc39.github.io/proposal-setmap-offrom/
+var aFunction = require('../internals/a-function');
+var bind = require('../internals/function-bind-context');
+var iterate = require('../internals/iterate');
+
+module.exports = function from(source /* , mapFn, thisArg */) {
+  var length = arguments.length;
+  var mapFn = length > 1 ? arguments[1] : undefined;
+  var mapping, array, n, boundFunction;
+  aFunction(this);
+  mapping = mapFn !== undefined;
+  if (mapping) aFunction(mapFn);
+  if (source == undefined) return new this();
+  array = [];
+  if (mapping) {
+    n = 0;
+    boundFunction = bind(mapFn, length > 2 ? arguments[2] : undefined, 2);
+    iterate(source, function (nextItem) {
+      array.push(boundFunction(nextItem, n++));
+    });
+  } else {
+    iterate(source, array.push, { that: array });
+  }
+  return new this(array);
+};