点击运行
<!DOCTYPE html> <html> <body> <h1>JavaScript Date.now()</h1> <p>Date.now() 是ECMAScript 5（2009）中的新功能：</p> <p id="demo1"></p> <p id="demo2"></p> <script> document.getElementById("demo1").innerHTML = Date.now(); var d = new Date(); document.getElementById("demo2").innerHTML = d.getTime(); </script> </body> </html>
运行结果
