javascript - 两个不同字符串的单个正则表达式

Question

我需要编写一个正则表达式，它从以下两个字符串返回颜色值和大小值。

[{"id":"2","name":"Color","code":"COLOR","optionValue":{"value":"TANGERINE TANGO","priority":0,"altValue1":"ORANGE","altValue2":null}},{"id":"3","name":"Size","code":"SIZE","optionValue":{"value":"MEDIUM","priority":4,"altValue1":null,"altValue2":null}}]

[{"id":"3","name":"Size","code":"SIZE","optionValue":{"value":"MEDIUM","priority":4,"altValue1":null,"altValue2":null}},{"id":"2","name":"Color","code":"COLOR","optionValue":{"value":"PEACOCK BLUE","priority":0,"altValue1":"GREEN","altValue2":null}}]

目前我分别有两个不同的正则表达式。

1) COLOR(?:.*?)value":"([^"]+)(?:.*?)SIZE(?:.*?)value":"([^"]+)"
2) SIZE(?:.*?)value":"([^"]+)(?:.*?)COLOR(?:.*?)value":"([^"]+)"

有没有办法使用单个正则表达式来实现此目的？

Answer 1

使用JSON.parse ，更安全，更适合使用 JSON 字符串:

var strings = ['[{"id":"2","name":"Color","code":"COLOR","optionValue":{"value":"TANGERINE TANGO","priority":0,"altValue1":"ORANGE","altValue2":null}},{"id":"3","name":"Size","code":"SIZE","optionValue":{"value":"MEDIUM","priority":4,"altValue1":null,"altValue2":null}}]', '[{"id":"3","name":"Size","code":"SIZE","optionValue":{"value":"MEDIUM","priority":4,"altValue1":null,"altValue2":null}},{"id":"2","name":"Color","code":"COLOR","optionValue":{"value":"PEACOCK BLUE","priority":0,"altValue1":"GREEN","altValue2":null}}]'];

var cnt = 0;
strings.forEach(function(str) {
   var array = JSON.parse(str);
   cnt += 1;
   document.getElementById("r").innerHTML += "<b>Match " + cnt + "</b><br/>";
   array.forEach(function(object) {
     document.getElementById("r").innerHTML += object.optionValue.value + "<br/>";
   });
});

<div id="r"/>

您可以声明一个数组，并将获得的结果推送到该数组中以供以后使用。