JavaScript字符串match与replace方法详解

<!DOCTYPE html>
<html lang="zh">

 <head>
  <meta charset="UTF-8" />
  <title>JavaScript中字符串的match与replace方法</title>
 </head>

 <body>
  <!--注意src路径要对-->
  <script src="js/jquery-1.12.4.min.js" type="text/javascript" charset="utf-8"></script>
  <script type="text/javascript">
   var str = "1 plus 2 equal 3";
   //match方法返回值为数组
   var arr = str.match(/[0-9]/g)
   console.log(arr);

   var new_str = str.replace(/[0-9]/g, 'newstr');
   //replace方法返回值为新的字符串
   console.log(new_str)
  </script>
 </body>

</html>