Javascript-仅获取正则表达式匹配项的可变部分 [英] Javascript -- get only the variable part of a regex match

问题描述

给定:

var regexp = new RegExp("<~~include(.*?)~~>", "g");

在javascript中将变量分配给.*匹配的变量的简便方法是什么?

What's the easist way in javascript to assign a variable to whatever's matched by .*?

我可以做到，但这有点丑陋:

I can do this, but it's a little ugly:

myString.match(regexp).replace("<~~include", "").replace("~~>", "");

推荐答案

Javascript应该在正则表达式匹配项上返回一个数组对象，其中数组的零索引是匹配的整个字符串，而以下索引是捕获组.在您的情况下，例如:

Javascript should return an array object on a regex match, where the zero index of the array is the whole string that was matched and the following indexes are the capture groups. In your case something like:

var myVar = regexp.exec(myString)[1];

应将(.*?)捕获组的值分配给 myVar .

should assign the value of the (.*?) capture group to myVar.

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