CODEWITHSUNDEEP
javascriptjqueryinputtextfieldtextinput
randomizertech
randomizertech

Reputation: 2329

How to load data on a text field?

I have two text fields and whenever I write a number in the first one, it should give me its name on the second field.

Let's say I write 11 on the "first" field, then it should automatically put the word 'eleven' (NOT number itself) on the "second" field. And the same thing with any number.

I know this can be done with jQuery but I just don't know how. Any suggestions??

Upvotes: 1

Views: 411

Answers (4)

PeterWong
PeterWong

Reputation: 16011

For any number of textboxes, this should work:

​​$(".syn").live("keyup", function() {
  var self = $(this);
  $(".syn").each(function() {
    $(this).val(self.val());
  });
})​​​​​​​​​​​​​​​

just put a class syn to your text input

Upvotes: 1

Matt
Matt

Reputation: 75317

To relate two strings, it's easiest to use an object to create a dictionary/ map, as shown below;

$('#input1').bind('keyup',function() {
     var map = {
         "1":"One",
         "2":"Fish",
         "3":"Bar"
     };

     $('#input2').val(map[$(this).val()]);
});

You can see this in action here: http://www.jsfiddle.net/dCy6f/

For more advanced behaviour:

$('#input1').bind('keyup',function() {
     var str = '';
     var input = $(this).val();
     var intVal = parseInt(input, 10); // Dont forget the radix
     var map = {
         "1":"One",
         "2":"Fish",
         "3":"Bar"
     };

     if (intVal > 50 && intVal < 100) {
         str = 'Something';
     } else if (map.hasOwnProperty(input)) {
         str = map[input];
     }

     $('#input2').val(str);
});

You can test this inplementation here: http://www.jsfiddle.net/H6skz/

If you want the second value only to update when the user has finished typing into the first input field, change "keyup" to "change".

To abstract this into a function, your could do:

function relate(me, withMe) {
    $(me).bind('keyup',function() {
         var str = '';
         var input = $(this).val();
         var intVal = parseInt(input, 10); // Dont forget the radix
         var map = {
             "1":"One",
             "2":"Fish",
             "3":"Bar"
         };

         if (intVal > 50 && intVal < 100) {
             str = 'Something';
         } else if (map.hasOwnProperty(input)) {
             str = map[input];
         }

         $(withMe).val(str);
    });
}

and then use it as follows:

relate('#input1', '#input2');

For a more intuitive interface, write a jQuery plugin:

(function ($) {
    jQuery.fn.relate = function (withMe) {
        this.bind('keyup',function() {
             var str = '';
             var input = $(this).val();
             var intVal = parseInt(input, 10); // Dont forget the radix
             var map = {
                 "1":"One",
                 "2":"Fish",
                 "3":"Bar"
             };

             if (intVal > 50 && intVal < 100) {
                 str = 'Something';
             } else if (map.hasOwnProperty(input)) {
                 str = map[input];
             }

             $(withMe).val(str);
        });
    };
}(jQuery));

and then use as follows:

$('#input1').relate('#input2');

Upvotes: 1

user372551
user372551

Reputation: 

$(function() {
  $('.input').bind('keyup',function() {
     $('.output').val($(this).val());
  });
});

you can Test it here http://jsbin.com/owani3

Upvotes: 3

Nik Chankov
Nik Chankov

Reputation: 6047

This should do the job

$('#f1').live('keyup', function(){
    $('#f2').val($(this).val())
})

Check working demo: http://jsfiddle.net/E44Un/

Upvotes: 1

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