Google Apps脚本正则表达式来获取人物的姓氏 [英] Google Apps Script Regular Expression to get the last name of a person

问题描述

  var name =我的名字我的名字是 ; 
 var regExp = new RegExp（\s [a-z] || [A-Z] *）; 
 var lastName = regExp（name）; 
 Logger.log（lastName）; 
  

如果我正确理解 \s 应该找到 My 和名称， [az] || [AZ]之间的空格会得到下一个字母，然后 * 会得到其余的。如果有人可以帮忙，我将不胜感激。

解决方案

您可以使用以下正则表达式：

  var name =John Smith; 
 var regExp = new RegExp（（？：\\s）（[a-z] +），gi）; //我是不区分大小写的
 var lastName = regExp.exec（name）[1]; 
 Logger.log（lastName）; // Smith 
  

但是，根据您的要求，使用 .split（）：

  var name =John Smith; 
 var lastName = name.split（）[1]; 
 Logger.log（lastName）; // Smith 
  

或 .substring（） （如果存在多个姓氏，则很有用）：

  var name =John Smith Smith; 
 var lastName = name.substring（name.indexOf（）+1，name.length）; 
 Logger.log（lastName）; // Smith Smith 
  

I am trying to write a regex to get the last name of a person.

var name = "My Name";
var regExp = new RegExp("\s[a-z]||[A-Z]*");
var lastName =  regExp(name); 
Logger.log(lastName);

If I understand correctly \s should find the white space between My and Name, [a-z]||[A-Z] would get the next letter, then * would get the rest. I would appreciate a tip if anyone could help out.

解决方案

You can use the following regex:

var name = "John Smith";
var regExp = new RegExp("(?:\\s)([a-z]+)", "gi"); // "i" is for case insensitive
var lastName = regExp.exec(name)[1];
Logger.log(lastName); // Smith

But, from your requirements, it is simpler to just use .split():

var name = "John Smith";
var lastName = name.split(" ")[1];
Logger.log(lastName); // Smith

Or .substring() (useful if there are more than one "last names"):

var name = "John Smith Smith";
var lastName = name.substring(name.indexOf(" ")+1, name.length); 
Logger.log(lastName); // Smith Smith

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