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[Refactoring 2판] Chapter 6-4 λ³€μˆ˜ μΈλΌμΈν•˜κΈ° (Inline Variable)

λ¦¬νŒ©ν„°λ§ 2νŒμ„ 보고 μ •λ¦¬ν•œ κΈ€λ‘œ, μƒλž΅λœ 뢀뢄이 μžˆκ±°λ‚˜ 잘λͺ» μ΄ν•΄ν•œ 뢀뢄이 μžˆμ„ 수 μžˆμŠ΅λ‹ˆλ‹€.

κ°œλ…κ³Ό 원칙

λ³€μˆ˜μ— λ‹΄κΈ΄ ν‘œν˜„μ‹μ΄ λ³€μˆ˜λͺ…κ³Ό λ‹€λ₯Ό λ°” 없을 κ²½μš°λ‚˜, λ³€μˆ˜κ°€ μ£Όλ³€ μ½”λ“œλ₯Ό λ¦¬νŒ©ν„°λ§ν•˜λŠ” 데 λ°©ν•΄κ°€ 될 λ•Œμ—λŠ” λ³€μˆ˜λ₯Ό 인라인 ν•˜λŠ” 것이 μ’‹λ‹€.


λ¦¬νŒ©ν† λ§ μ „

let basePrice = anOrder.basePrice; // λ³€μˆ˜λͺ…κ³Ό λ³€μˆ˜μ— λ‹΄κΈ΄ ν‘œν˜„μ‹μ΄ λ™μΌν•˜λ‹€. return (basePrice > 1000);

λ¦¬νŒ©ν† λ§ ν›„

return anOrder.basePrice > 1000;

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