FirstFT: the day's biggest stories
Author(s): Michael Pilipchuk, Chaitali Patil, Veera Sundararaghavan，更多细节参见safew官方版本下载
command until you type a non-cursor-movement key.。快连下载安装对此有专业解读
SourceBuffer: appendBuffer() method — MDN Web Docs
Jon Butterworth is professor of physics at University College London, and a member of the ATLAS Collaboration at Cern