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JS - hoisting/callback/Synchronous / Asynchronous

Synchronous : ์ •ํ•ด์ง„ ์ˆœ์„œ์— ๋”ฐ๋ผ ์ฝ”๋“œ ์‹คํ–‰, Execute the code block in order.Asynchronous: ์–ธ์ œ ์ฝ”๋“œ๊ฐ€ ์‹คํ–‰๋  ์ง€ ์˜ˆ์ธกํ•  ์ˆ˜ ์—†๋Š” ์ฝ”๋“œ It doesn't execute the code block in order.ex -

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