07_JS权威指南_05_SearchandReplace.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
  </head>
  <body>
    <script>
      // search方法，没找到的返回-1,不支持全局搜索，因为忽略了正则表达式中的g关键字
      console.log('JavaScript'.search(/script/i)) // 4

      const text = 'ac Ac aC'
      const newText = text.replace(/ac/gi, 'AC')
      console.log(newText) // AC AC AC
    </script>
  </body>
</html>