Function.prototype.isGenerator()

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

Summary

The isGenerator() method determines whether or not a function is a generator.

Syntax

fun.isGenerator()

Description

The isGenerator() method determines whether or not the function fun is a generator. It was part of an early Harmony proposal, but has not been included in the ECMAScript 6 specification.

Examples

function f () { }

function g () {
  yield 42;
}

console.log("f.isGenerator() = " + f.isGenerator()); // f.isGenerator() = false
console.log("g.isGenerator() = " + g.isGenerator()); // g.isGenerator() = true 

Specifications

Not part of any specification. Implemented in JavaScript 1.8.6.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support Not supported 5.0 (5.0) Not supported Not supported Not supported
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported Not supported 5.0 (5.0) Not supported Not supported Not supported

See also

Document Tags and Contributors

Contributors to this page: evilpie, Sheppy, ethertank, fscholz, techlivezheng
Last updated by: fscholz,