逗号分隔列表中最后一个值的正则表达式

Question

我正在尝试构建一个正则表达式，它以逗号分隔列表中的最后一个逗号后返回所有内容。

// So if my list is as followed
var tag_string = "red, green, blue";

// Then my match function would return
var last_tag = tag_string.match(A_REGEX_I_CANNOT_FIGURE_OUT_YET);

// Then in last tag I should have access to blue

// I have tried the following things: 
var last_tag = tag_string.match(",\*");

// I have seen similar solutions, but I cannot figure out how to get the only the last string after the last comma.

Answer 1

您可以尝试以下内容：

var last_tag = tag_string.match("[^,]+$").trim();

首先获取" blue"然后删除尾随空格。

Answer 2

([^,]+)$

Edit live on Debuggex

Answer 3

[^,]+$

似乎可以解决问题。它与blue匹配。

Answer 4

tag_string.match(/[^,\s]+$/)

=> [ 'blue', index: 12, input: 'red, green, blue' ]

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