Bump to v4.0.0.

toPlainObject.js

@@ -0,0 +1,31 @@
+define(['./internal/copyObject', './keysIn'], function(copyObject, keysIn) {
+
+  /**
+   * Converts `value` to a plain object flattening inherited enumerable
+   * properties of `value` to own properties of the plain object.
+   *
+   * @static
+   * @memberOf _
+   * @category Lang
+   * @param {*} value The value to convert.
+   * @returns {Object} Returns the converted plain object.
+   * @example
+   *
+   * function Foo() {
+   *   this.b = 2;
+   * }
+   *
+   * Foo.prototype.c = 3;
+   *
+   * _.assign({ 'a': 1 }, new Foo);
+   * // => { 'a': 1, 'b': 2 }
+   *
+   * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
+   * // => { 'a': 1, 'b': 2, 'c': 3 }
+   */
+  function toPlainObject(value) {
+    return copyObject(value, keysIn(value));
+  }
+
+  return toPlainObject;
+});