Loading...

javascript如何通過其 ID 設置選擇元素的選定選項?

Temperature: 0 °C

Mark ChangMark Chang
author_tools

如題,透過javascript來針對某個select的option來做選定。

document.getElementById("要用來設置select的ID").selectedIndex=第幾個option;

或者
document.getElementById("要用來設置select的ID").options.namedItem("第幾個option").selected=true;

或者
document.getElementById("要用來設置select的ID").options[第幾個option].selected=true;

以上紀錄~
 

#故事  #javascript  #select  #option  
https://innstory.com/story-javascript如何通過其_ID_設置選擇元素的選定選項-3144
javascript

Prev
 使用PHP資料量太大遇到Allowed_memory_size_of_134217728_bytes_exhausted_問題

Next
使用PHP取得指定月份最後一天的日期 

About the Author

Mark Chang

離不開電腦的宅男

Visitor message

Leave some footprints to prove that you visited me

Recommended reading

Author's other related stories

使用.htaccess關閉特定文件的緩存

使用.htaccess關閉特...

以特定檔案為例 <Files page.php> FileETag None Header unse...

使用CSS讓整個網頁由彩色變黑白色!

使用CSS讓整個網頁由彩色變...

blackandwhite5 把下面的語法加入網頁的<head>與</head&g...

PDO常用方法

pexelsphoto555.jpeg PDO::query() 主要用於有記錄結果返回的操作(PD...

Please select an option

error

Hi, thank you for your participation, but you cannot vote repeatedly~

Join innstory now and start recording your story.

"Innstory" is a place to store stories. We are committed to becoming a warm platform. Deepening the bonds between people is our direction.
We are convinced that the blockchain between people is not just a cold calculation. Join us now.

Wrong format