I know the extra two characters are annoying; I know this will break backwards compatibility.

我知道这两个额外的符号十分讨厌；我也知道这将会破坏向后兼容性。

youdao

Although using a regex for this adds a bit of performance overhead, it lets you defer the list of whitespace characters to the browser for the sake of brevity and compatibility.

请注意，此方案在循环中使用正则表达式检测字符串尾部的字符是否空格，尽管使用正则表达式增加了一点性能负担，但它允许你根据浏览器定义空格字符列表，以保持简短和兼容性。

youdao

The characters of QIULIN team is grateful, happiness, compatibility and grown-up.

感恩、快乐、兼容、成长是团队的基本要求和特点。

youdao