本文介绍了自动将字段的文本复制到另一个字段的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我需要复制在字段中输入的文本(无论是键入,粘贴还是从浏览器自动填充),并在用户更改为另一个字段的同时将其粘贴到另一个字段中。

I need to copy the text entered in a field (whether it was typed in, pasted or from browser auto-filler) and paste it in another field either at the same time or as soon as the user changes to another field.

如果用户删除了field_1中的文字,它也会在字段_2中自动删除。

If the user deletes the text in field_1, it should also get automatically deleted in field_2.

我'我试过这个但它不起作用:

I've tried this but it doesn't work:

<script type="text/javascript">
$(document).ready(function () {

function onchange() {
var box1 = document.getElementById('field_1');
var box2 = document.getElementById('field_2');
box2.value = box1.value;
}
});
</script>

任何想法?

推荐答案

你差不多......函数是正确的,你只需要将它分配给输入的更改事件:

You are almost there... The function is correct, you just have to assign it to the change event of the input:

<script type="text/javascript">
    $(document).ready(function () {

        function onchange() {
            //Since you have JQuery, why aren't you using it?
            var box1 = $('#field_1');
            var box2 = $('#field_2');
            box2.val(box1.val());
        }
        $('#field_1').on('change', onchange);
    });

这篇关于自动将字段的文本复制到另一个字段的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-14 17:37
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