Legacy generator function expression
The legacy generator function expression is a SpiderMonkey-specific feature, and will be removed at some point. For future-facing usages, consider using the
function* expression.The function keyword can be used to define a legacy generator function inside an expression. To make the function a legacy generator, the function body should contain at least one yield expression.
Syntax
JavaScript
Copy Code
function [name]([param1[, param2[, ..., paramN]]]) {
statements
}
Parameters
name- The function name. Can be omitted, in which case the function is anonymous. The name is only local to the function body.
paramN- The name of an argument to be passed to the function. A function can have up to 255 arguments.
statements- The statements which comprise the body of the function. This should contain at least one
yieldexpression.
Description
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
Generator- The legacy generator function
- The legacy Iterator protocol
yield- Functions and function scope
functionfunction expressionFunctionfunction*function* expressionGeneratorFunction- The Iterator protocol
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/javascript/reference/operators/legacy_generator_function