我如何在jQuery选项中触发一个函数,如果已选择选项,我想通过它执行ajax函数,但是控制不转到jQuery函数
jQuery文件: -
$(document).ready(function(){
$("#value").change(function(){
alert("The text has been changed.");
});
});
html我想在哪里to triger jquery函数我单击选定的选项文件: -
<select id="value">
<option value="o"> SELECT-0</option>
<option value="1" selected=selected> SELECT-1</option>
<option value="2"> SELECT-2</option>
<option value="3"> SELECT-3</option>
</select>
您需要在document.ready.ready
上进行trigger()
用于注释: when the selected option is clicked again,
。因此,添加click
的事件
$(document).ready(function() {
$("#value").on('change click',function() {
alert("The text has been changed.");
});
$("#value").trigger('change')
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.0/jquery.min.js"></script>
<select id="value">
<option value="o"> SELECT-0</option>
<option value="1" selected=selected> SELECT-1</option>
<option value="2"> SELECT-2</option>
<option value="3"> SELECT-3</option>
</select>