在 JavaScript 错误警报后将焦点设置在输入字段上 [英] Set a focus on input field after alert in JavaScript error
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问题描述
我想使用 JavaScript 函数将焦点设置在特定的输入字段上.
I want to set focus on a specific input field using JavaScript function.
代码如下:
function checknag() {
var x1 = document.getElementById('tsumnag').value;
var x2 = document.getElementById('salenugsum').value;
if (+x1 == +x2) {
// here the button key 'hey' will be used as the text.
$('#munshi_perc').focus();
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input required class="urdu" onfocusout='checknag();' value="" type="text" />
<input required class="urdu" id="tsumnag" value="" type="text" />
<input required class="urdu" id="salenugsum" value="" type="text" />
<input required class="urdu" id="munshi_perc" value="" type="text" />
它只是专注,但我需要提醒然后专注于输入字段.
It just focuses, but I need alert and then focus on the input field.
下面的代码不起作用:
function checknag() {
var x1 = document.getElementById('tsumnag').value;
var x2 = document.getElementById('salenugsum').value;
if (+x1 == +x2) {
$.alert({
title: 'Alert!',
content: 'Please enter item name',
onDestroy: function() {
// here the button key 'hey' will be used as the text.
$('#munshi_perc').focus();
}
});
return false;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input required class="urdu" onfocusout='checknag();' value="" type="text" />
<input required class="urdu" id="tsumnag" value="" type="text" />
<input required class="urdu" id="salenugsum" value="" type="text" />
<input required class="urdu" id="munshi_perc" value="" type="text" />
推荐答案
来自您问题下方的评论:
From comments below your question:
我没有使用任何插件
这就是问题所在.我猜你只是从某处粘贴了一些代码,并没有查看依赖项.
So that is the problem. I guess you just pasted some code from somewhere and did not look at the dependencies.
如果加载了 jQuery-Confirm 插件,则您的代码有效.因此,只需添加以下代码段中使用的 CDN.
Your code works if the jQuery-Confirm plugin is loaded. So just add the CDNs used in the below snippet.
function checknag() {
var x1 = document.getElementById('tsumnag').value;
var x2 = document.getElementById('salenugsum').value;
if (+x1 == +x2) {
$.alert({
title: 'Alert!',
content: 'Please enter item name',
onDestroy: function() {
// here the button key 'hey' will be used as the text.
$('#munshi_perc').focus();
}
});
return false;
}
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/jquery-confirm/3.3.4/jquery-confirm.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-confirm/3.3.4/jquery-confirm.min.js"></script>
<input required class="urdu" onfocusout='checknag();' value="" type="text" />
<input required class="urdu" id="tsumnag" value="" type="text" />
<input required class="urdu" id="salenugsum" value="" type="text" />
<input required class="urdu" id="munshi_perc" value="" type="text" />
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