1
A
回答
4
類型註釋不是ecmascript 6的一部分,它看起來像你使用的是Flow語法。對於Visual Studio代碼,有extensions支持此語法。
+0
哦,謝謝!我是一個初學者... – morizotter
0
那些波浪紅線是錯誤的。 你可以看到控制檯中的錯誤類型是什麼
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這看起來很像Typescript,而不是Javascript。 – JJJ