运行 ❯
获取您
自己
的网站
×
更改方向
保存代码
更改主题，深色/浅色
转到 Spaces
<!DOCTYPE html> <html> <body> <h2>JavaScript For In Loop</h2> <p>The for in statement loops through the properties of an object:</p> <p id="demo"></p> <script> const person = {fname:"John", lname:"Doe", age:25}; let txt = ""; for (let x in person) { txt += person[x] + " "; } document.getElementById("demo").innerHTML = txt; </script> </body> </html>
