buf.slice([start[, end]])
start<integer> 新的Buffer将开始的位置。 默认值:0。end<integer> 新的Buffer将结束的位置(不包括在内)。 默认值:buf.length.- 返回: <Buffer>
返回新的 Buffer,其引用与原始缓冲区相同的内存,但由 start 和 end 索引进行偏移和裁剪。
这与 buf.subarray() 的行为相同。
此方法与 Uint8Array.prototype.slice()(Buffer 的超类)不兼容。
要复制切片,则使用 Uint8Array.prototype.slice()。
const buf = Buffer.from('buffer');
const copiedBuf = Uint8Array.prototype.slice.call(buf);
copiedBuf[0]++;
console.log(copiedBuf.toString());
// 打印: cuffer
console.log(buf.toString());
// 打印: bufferstart<integer> Where the newBufferwill start. Default:0.end<integer> Where the newBufferwill end (not inclusive). Default:buf.length.- Returns: <Buffer>
Returns a new Buffer that references the same memory as the original, but
offset and cropped by the start and end indices.
This is the same behavior as buf.subarray().
This method is not compatible with the Uint8Array.prototype.slice(),
which is a superclass of Buffer. To copy the slice, use
Uint8Array.prototype.slice().
const buf = Buffer.from('buffer');
const copiedBuf = Uint8Array.prototype.slice.call(buf);
copiedBuf[0]++;
console.log(copiedBuf.toString());
// Prints: cuffer
console.log(buf.toString());
// Prints: buffer