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javascriptでの正規表現を用いて文字列を抽出する方法

Last updated at Posted at 2022-04-12

業務でjsから文字列を抽出する作業を何度か行った為、
忘備録を残しておく。

例:

ex.js
var a = "抽出元の文字列";
var b = a.match(/正規表現/);
console.log(b);//正規表現にマッチする文が出力

グルーピングを用いることも可能
阿部寛のホームページから「abehiroshi」のみを抽出する場合

abe.js
var url = "http://abehiroshi.la.coocan.jp/";
var i = url.match(/(abe.*?)\./);
console.log(i[1]);//abehiroshi
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