function* fib () {
let [prev, cur] = [0,1]
for (;;) {
yield cur
[prev, cur] = [cur, cur+prev]
}
}
for (let item of fib()) {
if (item > 1000) break;
console.log(item)
}
function* fib () {
let [prev, cur] = [0,1]
for (;;) {
yield cur
[prev, cur] = [cur, cur+prev]
}
}
for (let item of fib()) {
if (item > 1000) break;
console.log(item)
}