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  • ์˜๋ฏธ
  • ๋ฌธ๋ฒ•
  • 1. ๋ฐ์ดํ„ฐ ํƒ€์ž…
  • 2. ๊ฐ์ฒด(object)
  • 3. ๋ฐฐ์—ด(array)
  • 4. ์ฃผ์„(comment)
  • ์ฐธ๊ณ ๋ฌธํ—Œ
  1. Extra learning

JSON

์˜๋ฏธ

  • ์ด๋ฆ„์—์„œ ์•Œ ์ˆ˜ ์žˆ๋“ฏ, JavaScript์—์„œ ๊ฐ์ฒด๋ฅผ ๋งŒ๋“ค ๋•Œ ์‚ฌ์šฉํ•˜๋Š” ๋ฌธ๋ฒ•์„ ๊ธฐ๋ฐ˜์œผ๋กœ ๋งŒ๋“ค์–ด์ง

  • ํ•˜๋‚˜์˜ ๋ฌธ์ž์—ด๋กœ ์ทจ๊ธ‰ํ•  ์ˆ˜ ์žˆ๊ณ  ์–‘์‹๊ณผ ๊ตฌ์กฐ๊ฐ€ ์ •ํ•ด์ ธ ์žˆ์–ด์„œ ๊ฒฝ๋Ÿ‰์˜ ๋ฐ์ดํ„ฐ ๊ตํ™˜ ํ˜•์‹์œผ๋กœ ์‚ฌ์šฉ๋จ

  • ๊ฐ์ฒด์™€ ๋ฐฐ์—ด ๋“ฑ์˜ ๋ฐ์ดํ„ฐ๋ฅผ ํ‘œํ˜„ํ•  ์ˆ˜๋„ ์žˆ๊ณ , key-value pair ๋ฐฉ์‹์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฐ์ดํ„ฐ๋ฅผ ํ‘œํ˜„ํ•จ

  • ๊ฐ€๋…์„ฑ์ด ๋†’๊ณ  ํŒŒ์‹ฑํ•˜๊ธฐ ์‰ฌ์šฐ๋ฉฐ ์ „์†ก ์†๋„๊ฐ€ ๋น ๋ฆ„

  • ๊ทœ์น™์„ ๊ฐ–๋Š” ๋‹จ์ˆœํ•œ ํ…์ŠคํŠธ ํฌ๋งท์œผ๋กœ ์ทจ๊ธ‰ํ•  ์ˆ˜ ์žˆ๊ธฐ์— ๋‹ค์–‘ํ•œ ์–ธ์–ด์—์„œ ์ด ํฌ๋งท์„ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์Œ

๋ฌธ๋ฒ•

  • ํ…์ŠคํŠธ ๊ธฐ๋ฐ˜์œผ๋กœ ๊ตฌ์กฐํ™”๋œ ๋ฐ์ดํ„ฐ๋ฅผ ํ‘œํ˜„ํ•จ

1. ๋ฐ์ดํ„ฐ ํƒ€์ž…

  • ๋ฌธ์ž์—ด(string), ์ˆซ์ž(number), ๊ฐ์ฒด(object), ๋ฐฐ์—ด(array), ๋ถˆ๋ฆฌ์–ธ(bool - true,false), null์„ ์‚ฌ์šฉํ•จ

  • ๋ชจ๋“  key์™€ value๋Š” ๊ฐ๊ฐ ์Œ๋”ฐ์˜ดํ‘œ ""๋กœ ๋‘˜๋Ÿฌ์‹ธ์—ฌ ์žˆ์Œ

2. ๊ฐ์ฒด(object)

  • ์ค‘๊ด„ํ˜ธ {} ๋กœ ๋‘˜๋Ÿฌ์‹ธ์ธ key-value ์Œ์˜ ์ง‘ํ•ฉ

  • ๊ฐ key์™€ value์€ ์ฝœ๋ก  ':' ์œผ๋กœ ๊ตฌ๋ถ„๋˜๊ณ , ์ฝœ๋ก  ๋’ค์— ๊ณต๋ฐฑ์„ ๋„ฃ์Œ

  • key๋Š” ๋ฐ˜๋“œ์‹œ string ํƒ€์ž…์ด์–ด์•ผ ํ•˜๊ณ , value๋Š” 1์—์„œ ๊ธฐ์ˆ ํ•œ ๋ชจ๋“  ๋ฐ์ดํ„ฐ ํƒ€์ž…์„ ๊ฐ€์งˆ ์ˆ˜ ์žˆ์Œ

  • ์—ฌ๋Ÿฌ๊ฐœ์˜ key-value ์Œ์ด ์žˆ์œผ๋ฉด, ์ฝค๋งˆ ','๋กœ ๊ตฌ๋ถ„ํ•จ

๊ฐ์ฒด (object)
{
    "name": "John",
    "age": 30,
    "address": {
        "city": "New York",
        "state": "NY"
    },
    "hobbies": ["reading", "music", "traveling"]
}

3. ๋ฐฐ์—ด(array)

  • ๋Œ€๊ด„ํ˜ธ []๋กœ ๋‘˜๋Ÿฌ์‹ธ์ธ ๊ฐ’๋“ค์˜ ์ง‘ํ•ฉ

  • 1์—์„œ ๊ธฐ์ˆ ํ•œ ๋ชจ๋“  ๋ฐ์ดํ„ฐ ํƒ€์ž… ์ค‘ ํ•œ๊ฐ€์ง€๋กœ ๋ฐฐ์—ด์„ ํ‘œํ˜„ํ•  ์ˆ˜ ์žˆ์Œ

  • ๊ฐ’๋“ค์€ ์ฝค๋งˆ ','๋กœ ๊ตฌ๋ถ„ํ•จ

  • 2๋ฒˆ ๊ฐ์ฒด์˜ ์ฝ”๋“œ์—์„œ "hobbies" ๋Š” ๋ฐฐ์—ด์ž„(๋ฌธ์ž์—ด์˜ ๋ฐฐ์—ด)

๊ฐ์ฒด์˜ ๋ฐฐ์—ด
[
    {
        "name": "John",
        "age": 30
    },
    {
        "name": "Jane",
        "age": 25
    },
    {
        "name": "Mark",
        "age": 35
    }
]

4. ์ฃผ์„(comment)

  • JSON์—์„œ๋Š” ์ฃผ์„์„ ์‚ฌ์šฉํ•  ์ˆ˜ ์—†์Œ (# // ๋“ฑ )

  • ์ฃผ์„ ๋Œ€์‹ ์— "comment"๋ผ๋Š” key์— "์›ํ•˜๋Š” ๋‚ด์šฉ"์„ value๋กœ ๋„ฃ๊ธฐ๋„ ํ•จ

์ฃผ์„ comment
{
    "name": "John",
    "age": 30,
    "comment": "This is a comment."
}

์ฐธ๊ณ ๋ฌธํ—Œ

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