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러닝 자바스크립트: ES6로 제대로 입문하는 모던 자바스크립트 웹 개발
book

러닝 자바스크립트: ES6로 제대로 입문하는 모던 자바스크립트 웹 개발

by 한선용, 이선 브라운
July 2017
Beginner to intermediate
464 pages
10h 38m
Korean
Hanbit Media, Inc.
Content preview from 러닝 자바스크립트: ES6로 제대로 입문하는 모던 자바스크립트 웹 개발
266
러닝 자바스크립트
yield
'
yellow
';
yield
'
green
';
yield
'
blue
';
yield
'
indigo
';
yield
'
violet
';
}
이제 이 제너레이터를 어떻게 호출하는지 알아봅시다. 제너레이터를 호출하면 이터레이터를
얻습니다. 함수를 호출한 다음 이터레이터를 써서 단계별로 진행합니다.
const
it
=
rainbow
();
it
.
next
(); // {
value
: "
red
",
done
:
false
}
it
.
next
(); // {
value
: "
orange
",
done
:
false
}
it
.
next
(); // {
value
: "
yellow
",
done
:
false
}
it
.
next
(); // {
value
: "
green
",
done
:
false
}
it
.
next
(); // {
value
: "
blue
",
done
:
false
}
it
.
next
(); // {
value
: "
indigo
",
done
:
false
}
it
.
next
(); // {
value
: "
violet
",
done
:
false
}
it
.
next
(); // {
value
:
undefined
,
done
:
true
}
rainbow
제너레이터는 이터레이터를 반환하므로
for
...
of
루프에서 쓸 수 있습니다.
for
(
let
color
of
rainbow
()) {
console
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Publisher Resources

ISBN: 9788968483387