打字稿concat警告没有重载匹配

Question

console.log([].concat(0, 123))

我不知道错误是什么意思

No overload matches this call.
  Overload 1 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
    Argument of type '0' is not assignable to parameter of type 'ConcatArray<never>'.
  Overload 2 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
    Argument of type '0' is not assignable to parameter of type 'ConcatArray<never>'.ts(2769)

我将变量赋值并声明任何类型，但仍然看到错误。

Answer 1

尝试一下：

console.log(([] as any[]).concat(0, 123));

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