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[JPA] ORM(Object Relational Mapping)

ORM(Object Relational Mapping) ๊ฐ์ฒด์ง€ํ–ฅ ์–ธ์–ด๋กœ ๊ด€๊ณ„ํ˜• ๋ฐ์ดํ„ฐ ๋ฒ ์ด์Šค๋ฅผ ์ด์šฉํ•ด ๊ฐœ๋ฐœํ•  ๋•Œ ํ•„์š”ํ•œ ORM์„ ์•Œ์•„๋ณด์ž.

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[Spring] JSON๊ณผ Message Converter

JSON๊ณผ Message Converter ์Šคํ”„๋ง ์„œ๋ฒ„์™€ ํด๋ผ์ด์–ธํŠธ์—์„œ JSON ํ˜•์‹์œผ๋กœ ๋ฉ”์‹œ์ง€๋ฅผ ๋ณด๋‚ด๋Š” ์ด์œ ์™€ Message Converter๋ฅผ ์•Œ์•„๋ณด์ž.

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[HTML/CSS/JS] var, let, const

var, let, const ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์—์„œ ๋ณ€์ˆ˜๋ฅผ ์„ ์–ธํ•  ๋•Œ ์‚ฌ์šฉํ•˜๋Š” var, let, const์˜ ์ฐจ์ด๋ฅผ ์•Œ์•„๋ณด์ž.

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