How I set the a field in a input select (HTML) with javascript?

Question

I will randomly select a number and define the selected field in a select with the sorted number. How I set the field?

Doug Chamberlain · Accepted Answer · 2011-05-10 17:48:45Z

3

Add the Attribute selected="selected" to the option element that you want to select.

pseudo code

function foo()
{
create list of option elements
generate random number
get a single option element at index of random number
set all options attribute "selected" = null
set the option element[at index of random number] attribute selected = "selected"
}

answered May 10, 2011 at 17:48

Doug Chamberlain

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Comments

bungdito · Accepted Answer · 2011-05-10 18:02:23Z

1

var randomNumber = 3; // just for example 
document.getElementById('select_field').selectedIndex = randomNumber;

answered May 10, 2011 at 18:02

bungdito

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