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What is the role of the exec method in JavaScript RegExp?

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2023-08-28 18:33:09785browse

JavaScript RegExp中的exec方法的作用是什么？

The exec() method in JavaScript searches for a string with a pattern. If no match is found, NULL is returned, otherwise the text you searched for is returned.

Example

You can try running the following code to learn how to use the exec() method in JavaScript regular expressions -

<html>
   <head>
      <title>JavaScript Regular Expressions</title>
   </head>
   <body>
      <script>
         var myStr = "Welcome to our website! Welcome to Tutorialspoint!";
         var res = /t/.exec(myStr);
         document.write(res);
      </script>
   </body>
</html>

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