Donna
0
Q:

js generator

function* fibonacci() {
  var a = yield 1;
  yield a * 2;
}

var it = fibonacci();
console.log(it);          // "Generator {  }"
console.log(it.next());   // 1
console.log(it.send(10)); // 20
console.log(it.close());  // undefined
console.log(it.next());   // throws StopIteration (as the generator is now closed)
1
function* name([param[, param[, ... param]]]) {
   statements
}
1

        
            
        
     function* forever() {
    let index = 0;
    while (true) {
        yield index++;
    }
}

let f = forever();
console.log(f.next()); // 0
console.log(f.next()); // 1
console.log(f.next()); // 2
0

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