new buffer.Blob([sources[, options]])

• sources <string[]> | <ArrayBuffer[]> | <TypedArray[]> | <DataView[]> | <Blob[]> 将存储在 Blob 中的字符串数组、<ArrayBuffer>、<TypedArray>、<DataView> 或 <Blob> 对象、或此类对象的任何组合。
• options <Object>
  • encoding <string> 用于字符串源的字符编码。 默认值: 'utf8'.
  • type <string> Blob 内容类型。 目的是让 type 传达数据的 MIME 媒体类型，但不执行类型格式的验证。

创建新的 Blob 对象，其中包含给定源的串接。

<ArrayBuffer>、<TypedArray>、<DataView> 和 <Buffer> 源被复制到 'Blob' 中，因此可以在创建 'Blob' 后安全地修改。

字符串源也被复制到 Blob 中。

• sources <string[]> | <ArrayBuffer[]> | <TypedArray[]> | <DataView[]> | <Blob[]> An array of string, <ArrayBuffer>, <TypedArray>, <DataView>, or <Blob> objects, or any mix of such objects, that will be stored within the Blob.
• options <Object>
  • encoding <string> The character encoding to use for string sources. Default: 'utf8'.
  • type <string> The Blob content-type. The intent is for type to convey the MIME media type of the data, however no validation of the type format is performed.

Creates a new Blob object containing a concatenation of the given sources.

<ArrayBuffer>, <TypedArray>, <DataView>, and <Buffer> sources are copied into the 'Blob' and can therefore be safely modified after the 'Blob' is created.

String sources are also copied into the Blob.