The purpose / real usage example of sending value to es6 next(myParameter)?

[Vladimir Kelman]

I understand that with ES6 generators we can send a value to generator using next(myParameter). Could someone provide a realistic example showing why is it necessary / helpful?

[Axel Rauschmayer]

http://exploringjs.com/es6/ch_generators.html#_example-processing-asynchronously-pushed-data

[Vladimir Kelman]

Thank you Axel.

I'm new to this stuff and was trying to understand how next(myParameter) works and why it is necessary.

I also found it on mozilla dev documentation and now understand it:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Iterators_and_Generators - "fibonacci generator using next(x) to restart the sequence" example.

"The next() method also accepts a value which can be used to modify the internal state of the generator. A value passed to next() will be treated as the result of the last yield expression that paused the generator."

[Axel Rauschmayer]

If you are new to generators, you can read the following section in “Exploring ES6”: http://exploringjs.com/es6/ch_generators.html#_generators-as-observers-data-consumption