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 对象方法</h1> <p>Object.entries() 使得在循环中使用对象变得简单：</p> <p id="demo"></p> <script> const fruits = {Bananas:300, Oranges:200, Apples:500}; let text = ""; for (let [fruit, amount] of Object.entries(fruits)) { text += fruit + ": " + amount + "<br>"; } document.getElementById("demo").innerHTML = text; </script> </body> </html>