通過javascript呈現html表

我陷入了一個奇怪的境地。。。

// ticketList refers to an html table id
console.log("ticketList.rows.length before: " + ticketList.rows.length);
    for (i= 1; i < ticketList.rows.length; i++) {
        ticketList.rows[i].remove();
        console.log(`ticket ${i - 1} removed`);
    }

    // some more code which works properly

    console.log("ticketList.rows.length after: " + ticketList.rows.length);

現在這是控制臺輸出：

ticketList.rows.length before: 13
ticket 0 removed
ticket 1 removed
ticket 2 removed
ticket 3 removed
ticket 4 removed
ticket 5 removed
ticketList.rows.length after: 19

初始值13是正確的。為什么它在6次迭代后停止，而不是像預期的那樣刪除12個元素？

我嘗試在for-loop中對停止值進行硬編碼，結果出現以下錯誤：

無法讀取未定義的屬性（讀取“remove”）