W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<!DOCTYPE html> <html> <body> <h1>JavaScript 正则表达式</h1> <p>在字符串中每行的开头对 "is" 进行全局多行搜索：</p> <p id="demo"></p> <script> let text = `Is this all there is` let pattern = /^is/gm; let result = text.match(pattern); document.getElementById("demo").innerHTML = result; </script> </body> </html>