javascript：按组拆分字符串

Question

是否有标准功能可以做到这一点：

一些例子：

"LLLDDDDLL" -> ["LLL", "DDDD", "LL"]
"LLLDDDD" -> ["LLL", "DDDD"]
"DDDDLL" -> ["DDD", "LL"]

Answer 1

通过使用此正则表达式

(\w)\1*

此正则表达式将匹配连续重复的字符。

function splitRepeated( input ) {
  let result = input.match(/(\w)\1*/g) 
  console.log( result )
}

splitRepeated("LLLDDDDLL")
splitRepeated("LLLDDDD")
splitRepeated("DDDDLL")