NodeJS RegExp:如何访问结果的完整列表

NodeJS RegExp: how to access full list of results

本文关键字：结果 列表 访问 RegExp 何访问 NodeJS      更新时间：2023-09-26

当我在Node中.exec()正则表达式时，我无法访问完整的结果列表。下面是我的代码:

var p = /(aaa)/g;
var t = "someaaa textaaa toaaa testaaa aaagainst";
p.exec(t);
> [ 'aaa', 'aaa', index: 4, input: 'someaaa textaaa toaaa testaaa aaagainst' ]

无论如何，我只得到两个结果。我的错误是在RegExp本身吗?

任何帮助将不胜感激!

exec将只返回第一个匹配的结果。获取所有结果

  1. 使用match 

    var p = /(aaa)/g;
var t = "someaaa textaaa toaaa testaaa aaagainst";
var matches = t.match(p);


var p = /(aaa)/g,
  t = "someaaa textaaa toaaa testaaa aaagainst";
var matches = t.match(p);
console.log(matches);

  • 使用while和exec 

    while(match = p.exec(t)) console.log(match);


    • var p = /(aaa)/g,
  t = "someaaa textaaa toaaa testaaa aaagainst";
var matches = [];
while (match = p.exec(t)) {
  matches.push(match[0]);
}
console.log(matches);

    阅读:match Vs exec in JavaScript

     
    var p = /(aaa)/g;
var t = "someaaa textaaa toaaa testaaa aaagainst";
t.match(p);
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