CODEWITHSUNDEEP
jquery
Ibrahim Azhar Armar
Ibrahim Azhar Armar

Reputation: 25745

fetching form value in an array in jQuery

i have this dynamically populated form fields.

<input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>

on jQuery's keyup i want to fetch all the value from input[name="quantity[]"] and perform some calculations like total quantity i.e something like

(field1 quantity value) + (field2 quantity value) + (field3 quantity value) ... n

i tried fetching the value like this.

$('input[name="quantity[]"]').keyup(function(){
    var val = $(this).val();
});

this only fetches the value of first element and ignores the rest of fields. how do i go with what i want?

thank you

Upvotes: 1

Views: 2271

Answers (4)

thecodeparadox
thecodeparadox

Reputation: 87073

var ref = $('input[name^="quantity"]');
    ref.keyup(function(e){
        var result = 0;
        ref.each(function() {
          console.log($(this).val());
          if($(this).val().length && $(this).val() != '') {
            result += parseInt($(this).val());
          }
          console.log(result);
        });
    });

Live Demo

Upvotes: 1

Iori Yagami
Iori Yagami

Reputation: 134

try this:

 <input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>
<input type="text" name="quantity[]" placeholder="quantity"/>

<input type="text" name="res" placeholder="Resultado"/>



$(document).ready(function() {


$('input[name="quantity[]"]').keyup(function(){
   var val = 0;
   $('input[name="quantity[]"]').each(function() {
                val += Number($(this).val());
            });
    $('input[name="res"]').val(val);
});

});

fuente con jsfiddle

http://jsfiddle.net/kSw4G/3/

by JNE

Upvotes: 2

Muhammad Raheel
Muhammad Raheel

Reputation: 19882

A simple solution is to assign each text box a class let suppose quantity then 

var total_quantity = 0;  
$('.quantity').keyup(function()
{
    $(this).each(function()
    {
        total_quantity += $(this).val();
    });
});

Upvotes: 0

Jack
Jack

Reputation: 9538

var $quantity = $('input[name="quantity[]"]');

$quantity.keyup(function(){
    var val = 0;
    $quantity.each(function(){
        val += parseInt($(this).val(), 10);
    });
});

Upvotes: 2

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