We're looking for a user researcher to understand the needs of developers and designers. Is this you or someone you know? Check out the post: https://mzl.la/2IGzdXS
非标准
该特性是非标准的，请尽量不要在生产环境中使用它！
判断一个函数是否是一个生成器.
fun.isGenerator()该方法用来判断一个函数是否是一个生成器.
function f() {}
function* g() {
yield 42;
}
console.log("f.isGenerator() = " + f.isGenerator());
console.log("g.isGenerator() = " + g.isGenerator());
上面代码的输出结果为
f.isGenerator() = false g.isGenerator() = true
FunctionObjectObject.prototype.__defineGetter__()Object.prototype.__defineSetter__()Object.prototype.__lookupGetter__()Object.prototype.__lookupSetter__()Object.prototype.hasOwnProperty()Object.prototype.isPrototypeOf()Object.prototype.propertyIsEnumerable()Object.prototype.toLocaleString()Object.prototype.toSource()Object.prototype.toString()Object.prototype.unwatch()Object.prototype.valueOf()Object.prototype.watch()Object.setPrototypeOf()