Comparing JS and Py Generators

generators3.py

# function *foo(x) {
#     var y = 2 * (yield (x + 1));
#     var z = yield (y / 3);
#     return (x + y + z);
# }
#
# var it = foo( 5 );
#
# // note: not sending anything into `next()` here
# console.log( it.next() );       // { value:6, done:false }
# console.log( it.next( 12 ) );   // { value:8, done:false }
# console.log( it.next( 13 ) );   // { value:42, done:true }


# Apparently JS ES6 generators work almost the same as Python

def foo(x):
    y = 2 * (yield (x+1))
    z = yield (y / 3)
    yield x + y + z    # return in Python 3.3+

it = foo(5)

print(it.next())
print(it.send(12))
print(it.send(13))