typeScript报错问题Don't use String as a type. Use string instead

In TypeScript, `string` is the primitive type for a string, while `String` is a wrapper object for a string. When you define a variable or parameter as `String`, you are defining it as an object, which may cause unexpected behavior. To avoid this, you should use the primitive type `string` instead.

For example, instead of:

function sayHello(name: String) {
  console.log("Hello, " + name);
}

You should use:

function sayHello(name: string) {
  console.log("Hello, " + name);
}

This will help prevent any issues that may arise from using `String` instead of `string`.

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typeScript报错问题Don't use String as a type. Use string instead 中文回复

在TypeScript中，`string`是字符串的原始类型，而`String`是字符串的包装对象。当你将一个变量或参数定义为`String`时，你实际上是将它定义为一个对象，这可能会导致意外的行为。为了避免这种情况，你应该使用原始类型`string`。

例如，代替下面的代码：

function sayHello(name: String) {
  console.log("Hello, " + name);
}

你应该使用：

function sayHello(name: string) {
  console.log("Hello, " + name);
}

这将有助于防止使用`String`而不是`string`引起的任何问题。