传入一个正则表达式作为参数：

js> "Hello awesome, world!".split(/[\s,]+/)
Hello,awesome,world!

编辑添加：

您可以通过选择数组的长度减去 1 来获取最后一个元素：

>>> bits = "Hello awesome, world!".split(/[\s,]+/)
["Hello", "awesome", "world!"]
>>> bit = bits[bits.length - 1]
"world!"

…如果模式不匹配：

>>> bits = "Hello awesome, world!".split(/foo/)
["Hello awesome, world!"]
>>> bits[bits.length - 1]
"Hello awesome, world!"