javascript - 谷歌表格脚本: Getting values between two values?

Question

var mySTR = "some text some text some text1 text some text1 some text, some text some text text1 some other text text2 some text."




// i want as result: all text bewteen last appearing "text1" and "text2"

var result = "text1 some other text text2"

我该如何解决这个问题？提前致谢

Answer 1

mySTR.slice(mySTR.lastIndexOf('text1')+5,mySTR.lastIndexOf('text2'));

function textbetween(ss1,ss2,s) {
  var ss1=ss1||'text1';
  var ss2=ss2||'text2';
  var s=s||"some text some text some text1 text some text1 some text, some text some text text1 some other text text2 some text."
  Logger.log(s.slice(s.lastIndexOf(ss1)+ss1.length,s.lastIndexOf(ss2)));
}