Bump to v4.1.0.

_isStrictComparable.js

@@ -0,0 +1,16 @@
+define(['./isObject'], function(isObject) {
+
+  /**
+   * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` if suitable for strict
+   *  equality comparisons, else `false`.
+   */
+  function isStrictComparable(value) {
+    return value === value && !isObject(value);
+  }
+
+  return isStrictComparable;
+});