javascript+jquery check if element exists, then set its value, else something else

Question

I'm trying to check if a textfield exists withing another element, and I want to set its value if it does; otherwise, I want to add a radio. I've got the following code, but it's not working.

$("ul").each(function(){
if ( !($(this).find('input[value="9999"]').val()) ) {
    var textfield = $(this).find('input[type="text"]');
    if ( textfield.length ) textfield.value="9999";
    // ^ this doesn't work. have also tried if ($(textfield).val())
    else $(this).append('<input name="'+name+'" type="radio" value="9999" checked="checked" />');
    // ^ this works
} // if
});

btw, name is set dynamically earlier in the script.

Answer:

$("ul").each(function(){
if ( !($(this).find('input[value="9999"]').val()) ) {
    var txtfield = $(this).find('input[type="text"]');
    if ( txtfield.length ) $(txtfield).val("9999");
    // just changed this ^ line (above)
    else $(this).append('<input name="'+name+'" type="radio" value="9999" checked="checked" />');
} // if
});

did you try setting the value of the text field as $(textfield).val("9999")? — Anurag
– Anurag, Commented Jan 17, 2012 at 23:07
<input type="text" name="foo" /> or <input type="radio" name="foo" value="bar" /> — Jakob Jingleheimer
– Jakob Jingleheimer, Commented Jan 18, 2012 at 17:15
thanks @Anurag. since you were first, wanna put it as an answer and i'll mark it? — Jakob Jingleheimer
– Jakob Jingleheimer, Commented Jan 18, 2012 at 17:25

Sebastian · Accepted Answer · 2012-01-18 00:21:24Z

1

textfield is a jquery object already so you will need to set the value by using textfield.val("9999")

answered Jan 18, 2012 at 0:21

Sebastian

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Comments

Ryan · Accepted Answer · 2012-01-18 00:23:32Z

0

.find() will also return a list of elements, so if there are more than one, this may not work. You may need to do another .each() on the textfield variable.

answered Jan 18, 2012 at 0:23

Ryan

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1 Comment

Jakob Jingleheimer Over a year ago

hmm…I would have expected the textfield.value="9999" to execute on the first element from the find if that were the case, but I'll try the .each().

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