如何在html中将一个文本字段交换到另一个文本字段？

Question

In above image enter from and to field then
click the arrow it will change value in page from value is stored in to and to value is stored in from want code for swap that text box value in html

Answer 1

hard to understand your question but maybe this one you want .

<input type="text" id="f1">
<input type="text" id="f2">
<input type="button" id="b1" value="interchange">

$(document).ready(function(){
   $("#id1").click(function(){
     var f1 = $("#f1").val();
      $("#f2").val(f1);
   })
})