"在highlandjs中调用`group`后调用转换"

Question

The goal is to group items in a stream into multiple groups. Run transformations on those groups separately and then re-combine all the groups into one stream.

const groups = stream.group(func);
groups.map(item => console.log(item)); // prints nothing
groups.each(item => console.log(item)); // instead of item being one of the groups created, it's a dictionary with all the groups included. 

Answer 1

are you looking for doing this ? :

groups.on('error', handleError)
        .pipe(transformObject(async item => {
            some code...

If non, please try to give an example of what you want to do with your data.

Answer 2

import highland from 'highland'; const source = highland([ { age: 21, name: 'Alice' }, { age: 42, name: 'Bob' }, { age: 42, name: 'Carol' } ]); source .group(person => person.age) .flatMap(highland.values) // Apply transformation to each group here .map(group => group) .flatten(1) .doto(console.log) .done(() => {});