JavaScript - Form validation loop through specific fields

Question

I'm wondering, what would be a short/good way of performing form validation in JavaScript by looping through all input-text as well as <select>, however, the condition on the select is that out of the 2 selects, ONLY one needs to be selected.

<form id="daform">
<input type="text" value="" name="name" id="name" />
<input type="text" value="" name="last" id="last" />

<select id="choice1" name="choice1">
 <option>Bye</option>
 <option>Hello</option>
</select>

<select id="choice2" name="choice2">
 <option>Bye</option>
 <option>Hello</option>
</select>

<input type="submit" />
</form>

Sahil Muthoo · Accepted Answer · 2010-12-14 16:30:04Z

1

Look into,document.getElementsByTagName().

answered Dec 14, 2010 at 16:30

Sahil Muthoo

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Comments

sioked · Accepted Answer · 2010-12-14 16:50:15Z

0

You really should use some javascript toolkit for help with this, but if not this might help:

validateSelectChoices = function(){
  return document.getElementById('choice1').selectedIndex || document.getElementById('choice2').selectedIndex;
}

This will check to see if one of the select boxes has the 'hello' value selected (keep in mind that dropdowns will always default to the first option in the list, in your case 'bye'.

answered Dec 14, 2010 at 16:50

sioked

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Comments

CoffeeRain · Accepted Answer · 2013-05-01 15:22:31Z

0

Have you tried the jQuery validation plugin?
You can see a demo here.

edited May 1, 2013 at 15:22

CoffeeRain

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answered Dec 14, 2010 at 16:30

RSK

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2 Comments

dafont Over a year ago

Thanks, the thing is that I'm not using jQuery.

RSK Over a year ago

I think your life will be more easier if you use jQuery ;)

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