is-es6-generator-function:检查给定值是否为`GeneratorFunction`

is-es6-generator-function 检查给定值是否为GeneratorFunction 安装 npm i is-es6-generator-function --save npm test 用法 有关更多用例，请参阅 var isGeneratorFunction = require ( 'is-es6-generator-function' ) var generator = ( function * ( ) { } ) ( ) var genFunction = function * ( ) { yield 42 } isGeneratorFunction ( null ) //=> false isGeneratorFunction ( undefined ) //=> false isGeneratorFunction ( 42 ) //=> false is