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    [μ—λŸ¬ μ½”λ“œ] Uncaught TypeError: Cannot set properties of null (setting 'innerHTML')
    μΉ΄ν…Œκ³ λ¦¬ μ—†μŒ

    [μ—λŸ¬ μ½”λ“œ] Uncaught TypeError: Cannot set properties of null (setting 'innerHTML')

    2022. 11. 8. 22:53
    λ°˜μ‘ν˜•

    μ—λŸ¬ 상황

     

    μžλ°”μŠ€ν¬λ¦½νŠΈ μ½˜μ†”μ°½μ—μ„œ λ‹€μŒκ³Ό 같은 μ—λŸ¬κ°€ λœ¨λŠ” 것을 ν•œλ²ˆμ―€ κ²½ν—˜ν•΄λ΄€μ„ 것이닀.

     

    switch.js:54 Uncaught TypeError: Cannot set properties of null (setting 'innerHTML')
        at parcelRequire.switch.js (switch.js:54:20)
        at newRequire (switch.b5392d87.js:47:24)
        at switch.b5392d87.js:81:7
        at switch.b5392d87.js:120:3

     

    μ΄λΌλŠ” λ‚΄μš©μœΌλ‘œ μ—λŸ¬μ— λŒ€ν•΄μ„œ λœ¬λ‹€.

     

    μ²˜μŒμ— λ‹Ήν™©ν•  μˆ˜λ„ μžˆλŠ”λ°, 이것은 DOM μš”μ†Œλ₯Ό λ‘œλ”©ν•˜λŠ” λΆ€λΆ„μ—μ„œ 생긴 였λ₯˜μ΄λ‹€.

     

    예λ₯Όλ“€μ–΄, μ•„λž˜ 처럼 switch.js νŒŒμΌμ„ head νƒœκ·Έ μ•žλ‹¨μ— λ„£μ–΄μ„œ, jsλ₯Ό ν˜ΈμΆœν•˜κ³  μžˆλ‹€.

     

    ν•˜μ§€λ§Œ switch νŒŒμΌμ„ 열어보면

     

     

    쀑간에 root νƒœκ·Έλ₯Ό μ°Ύμ•„μ•Ό ν•˜λŠ” μ½”λ“œκ°€ μžˆλ‹€.

     

    λ°”λ‘œ μ΄κ²ƒλ•Œλ¬Έμ—, μ‹€μ œ ν™”λ©΄μ—μ„œλŠ” νŽ˜μ΄μ§€κ°€ κ΅¬ν˜„λ˜κΈ° μ΄μ „μ΄λ―€λ‘œ, body νƒœκ·Έμ˜ λ‚΄μš©μ΄ λ‚˜μ˜€κΈ°λ„ 전인데, root νƒœκ·Έλ₯Ό μ°Ύκ³  μžˆμœΌλ‹ˆ λ‹Ήμ—°νžˆ μ°Ύμ§€ λͺ»ν•œλ‹€λŠ” μ—λŸ¬ λ©”μ‹œμ§€λ₯Ό λ„μš΄ 것이닀.

     

     

     

    즉, ν•΄κ²° 방법은 μ½”λ“œμ˜ μˆœμ„œλ§Œ λ°”κΏ”μ£Όλ©΄ ν•΄κ²° κ°€λŠ₯ν•˜λ‹€.

     

     

    λ°˜μ‘ν˜•
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