new Buffer(arrayBuffer[, byteOffset[, length]])

版本历史

版本	变更
v10.0.0	Calling this constructor emits a deprecation warning when run from code outside the `node_modules` directory.
v7.2.1	Calling this constructor no longer emits a deprecation warning.
v7.0.0	Calling this constructor emits a deprecation warning now.
v6.0.0	The `byteOffset` and `length` parameters are supported now.
v6.0.0	弃用于: v6.0.0
v3.0.0	新增于: v3.0.0

arrayBuffer <ArrayBuffer> | <SharedArrayBuffer> TypedArray 的 ArrayBuffer、SharedArrayBuffer 或 .buffer 属性。
byteOffset <integer> 要暴露的第一个字节的索引。默认值： 0。
length <integer> 要暴露的字节数。默认值: arrayBuffer.byteLength - byteOffset。