add generatorFunction

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [unreleased]
+### Added
+- `be.generatorFunction`, check if is GeneratorFunction
+
 ## [1.9.0] - 2017-07-30
 ### Added
 - `be.sha256`, check if is sha256 string

index.d.ts

@@ -65,6 +65,7 @@ export declare namespace be {
     function float32Array(value: any): boolean;
     function float64Array(value: any): boolean;
     function asyncFunction(value: any): boolean;
+    function generatorFunction(value: any): boolean;
 
     function inArray(value: any, array: Array<any>): boolean;
     function arrayOfStrings(array: Array<any>): boolean;

src/asserts/types.js

@@ -781,6 +781,22 @@ Types.asyncFunction = (value) => {
     return Types.classOf(value, 'asyncfunction');
 };
 
+/**
+ * Check if is GeneratorFunction
+ *
+ * **Interfaces**: `all`, `any`, `not`, `err`
+ *
+ * @function
+ * @name generatorFunction
+ * @param value {Mixed} value
+ * @returns {boolean}
+ * @example
+ * be.generatorFunction(function* test(){}) // true
+ */
+Types.generatorFunction = (value) => {
+    return Types.classOf(value, 'generatorfunction');
+};
+
 Types = Interface.create(Types);
 
 module.exports = Types;

test/types.js

@@ -901,4 +901,17 @@ describe('asyncFunction', function () {
         console.log(result);
         assert.equal(result, false);
     });
+});
+
+describe('generatorFunction', function () {
+    it('should be return true', function () {
+        var result = be.generatorFunction(function* name(){return true});
+        console.log(result);
+        assert.equal(result, true);
+    });
+    it('should be return false', function () {
+        var result = be.generatorFunction(function test(){});
+        console.log(result);
+        assert.equal(result, false);
+    });
 });