[問題] dom的getElementByClassName

[flowwinds (..)]

大家好,

寫了個function
---------------------------------------------------------
function removeClass(dom_root, className){
    var doms = dom_root.getElementsByClassName(className);
    if(doms.length > 0){
        var i;
        console.log("doms length:"+doms.length);
        for (i = 0; i < doms.length ;i=i+1) {
            console.log("before length:"+doms.length);
            if(doms[i] != null){
                doms[i].classList.remove(className);
            }
            console.log("after length:"+doms.length);
        }
    }
}
---------------------------------------------------------

印出的結果是
--------------------
doms length:3
before length:3
after length:2
before length:2
after length:1
--------------------

而array就有一個element就沒處理到

有人知道這是甚麼原因嗎?

看起來就是class remove掉後, getElementsByClassName()的結果也會即時更新?

謝謝~

--
※ 編輯: flowwinds (1.162.7.2), 05/01/2019 15:42:26
→ flowwinds: for中條件判斷之前貼錯了 改了一下
推 bakedgrass: for之前的判斷跑起來沒問題啊XD