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<!DOCTYPE html> <html> <body> <h1>JavaScript 正则表达式</h1> <p>对字符串中每一行末尾的 "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>