Legacy generator function

The legacy generator function is a SpiderMonkey-specific feature, and will be removed at some point. For future-facing usages, consider using function*.

The legacy generator function statement declares legacy generator functions with the specified parameters.

You can also define functions using the Function constructor with functionBody and at least one yield expression, and a legacy generator function expression.


function name([param,[, param,[..., param]]]) {
The function name.
The name of an argument to be passed to the function. A function can have up to 255 arguments.
The statements which comprise the body of the function. This should contain at least one yield expression.


An overview of the usage is available on the Iterators and Generators page.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support No support (Yes) No support No support No support
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support No support (Yes) No support No support No support

See also

Document Tags and Contributors

 Contributors to this page: fscholz, arai
 Last updated by: fscholz,