1 files changed, 8 insertions, 0 deletions
diff --git a/node_modules/es5-ext/function/valid-function.js b/node_modules/es5-ext/function/valid-function.js
new file mode 100644
index 000000000..060bd6453
--- /dev/null
+++ b/node_modules/es5-ext/function/valid-function.js
@@ -0,0 +1,8 @@
+"use strict";
+
+var isFunction = require("./is-function");
+
+module.exports = function (value) {
+	if (!isFunction(value)) throw new TypeError(value + " is not a function");
+	return value;
+};