我正在尝试使用 onClick 定向到 JS 函数，但似乎没有任何效果，我已经尝试过：
.HTML：
<button type="button" id="deleteBtn" onClick="toDelete();">Delete Event</button>
.JS：
document.getElementById("deleteBtn").onclick = function() {toDelete()}
.JS：
document.getElementById("deleteBtn").addEventListener("click", toDelete);
这是我的函数：
function toDelete()
{
var answer = confirm("Are you sure you want to delete this event?'nPress OK to confirm deletion or CANCEL otherwise");
if (answer)
{
alert("The event has been deleted!");
<?php
echo "<form id='deleteForm' name='deleteForm' method='post' action='redirected/deleteRecord.php'>";
echo "<input name='EVENT_ID' type='hidden' value='{$EVENT_ID}'>";
echo "<input name='eventName' type='hidden' value='{$eventName}'>";
echo "<input name='addressLine_1' type='hidden' value='{$addressLine_1}'>";
echo "<input name='addressLine_2' type='hidden' value='{$addressLine_2}'>";
echo "<input name='townCity' type='hidden' value='{$townCity}'>";
echo "<input name='postcode' type='hidden' value='{$postcode}'>";
echo "<input name='description' type='hidden' value='{$description}'>";
echo "<input name='cost' type='hidden' value='{$cost}'>";
echo "<input name='eventDate' type='hidden' value={$eventDate}'>";
echo "</form>";
?>
document.getElementById('deleteForm').submit();
}
else
location.replace("events.php");
}
我编写了一个带有一个隐藏输入字段的示例代码片段（您可以在那里添加 php 代码）。当<form>元素移动到<script>标签之外时，它起作用。
function toDelete() {
var answer = confirm("Are you sure you want to delete this event?'nPress OK to confirm deletion or CANCEL otherwise");
if (answer) {
alert("The event has been deleted!");
document.getElementById('deleteForm').submit();
}
else
location.replace("events.php");
}
function updateConfirm() {
alert("Event has been updated!");
}<button type="button" id="deleteBtn" onclick="javascript:toDelete();">Delete Event</button>
<form id='deleteForm' name='deleteForm' method='post' action='redirected/deleteRecord.php'>
<input name='EVENT_ID' type='hidden' value='testid'>
</form>尝试使用 setTimeout
document.getElementById("deleteBtn").onclick = function() {setTimeout(function(){toDelete()},500);}