如何使用Javascript删除多行文本框中的重复项？ [英] How to Remove Duplicates in Multiline Textbox by using Javascript?

问题描述

我有两个多行文本框，在第一个文本框中我输入一些带有重复项的数字，现在我在第二个文本框中输入数字。当我按下过滤器按钮时，我得到两个文本框中可用的值，如

textbox1

9900990099,9977889977,9900887766

textbox2

9900990099,1234567890,0987654321



当我按下过滤器按钮我得到

9900990099（两个文本框都有）

如何在Javascript中执行此操作。请帮我

I Have Two Multiline Textboxes and in first textbox i enter some numbers with duplicates also and now i enter numbers in second textbox.when i press filter button i get the values which are available in both the textboxes like
textbox1
9900990099,9977889977,9900887766
textbox2
9900990099,1234567890,0987654321

whn i press filter button i get
9900990099 ( both the textboxes are have)
how can i do this in Javascript. pls help me

推荐答案

试试下面的代码。它适用于ASP.NET;从您的评论中，我看到您使用了它。

Try the below code. It works for ASP.NET; from your comment, I saw you used that.

var txt1 = document.getElementById('<%= txt1.ClientID %>').value;
var txt2 = document.getElementById('<%= txt2.ClientID %>').value;
var txt1values = txt1.split(",");
var txt2values = txt2.split(",");
var commonValues = [];
for (var i = 0; i < txt1values.length; i++) {
    var curr = txt1values[i];
    if (txt2values.indexOf(curr) != -1) {
        commonValues.push(curr);
    }
}
var commonValuesStr = commonValues.join(",");
document.getElementById('<%= txt3.ClientID %>').value = commonValuesStr;

这是如何工作的？ ASP.NET服务器通过可在客户端使用的ID替换<％= txt1.ClientID％> 。然后，代码用逗号分隔文本。然后，它循环遍历第一个文本框的所有值。该值是否也在第二个文本框的值中？然后它被添加到 commonValues 。最后， commonValues 中的所有值都以逗号连接。

How does this work? The ASP.NET server replaces <%= txt1.ClientID %> by the ID that can be used on the client side. Then, the code splits the text by a comma. Then, it loops over all values of the first textbox. Is that value also in the values of the second textbox? Then it gets added to commonValues. At the end, all values in commonValues get joined with a comma.

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