1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/core-js/internals/function-bind.js b/node_modules/core-js/internals/function-bind.js
new file mode 100644
index 0000000..6e1e81d
--- /dev/null
+++ b/node_modules/core-js/internals/function-bind.js
@@ -0,0 +1,27 @@
+'use strict';
+var aFunction = require('../internals/a-function');
+var isObject = require('../internals/is-object');
+
+var slice = [].slice;
+var factories = {};
+
+var construct = function (C, argsLength, args) {
+  if (!(argsLength in factories)) {
+    for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']';
+    // eslint-disable-next-line no-new-func
+    factories[argsLength] = Function('C,a', 'return new C(' + list.join(',') + ')');
+  } return factories[argsLength](C, args);
+};
+
+// `Function.prototype.bind` method implementation
+// https://tc39.github.io/ecma262/#sec-function.prototype.bind
+module.exports = Function.bind || function bind(that /* , ...args */) {
+  var fn = aFunction(this);
+  var partArgs = slice.call(arguments, 1);
+  var boundFunction = function bound(/* args... */) {
+    var args = partArgs.concat(slice.call(arguments));
+    return this instanceof boundFunction ? construct(fn, args.length, args) : fn.apply(that, args);
+  };
+  if (isObject(fn.prototype)) boundFunction.prototype = fn.prototype;
+  return boundFunction;
+};