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rated 0 times [  175] [ 5]  / answers: 1 / hits: 103672  / 11 Years ago, sat, july 27, 2013, 12:00:00

I must have made a mistake somewhere so the document.getElementsByClassName().innerHTML is always returning undefined.



First i generate the <li> via javascript :



$('#list').append('<li class=box><img class=picture src=images/HotPromo/tagPhoto1.png/><p class=name><b>Name</b></p><p class=address>Address</p><p class=hidden></p></li>');


Note that in the most right i have a <p> element with hidden class. I use this to get the id which i dont want to show to my users.



And this is the jQuery to generate the data on those <li> :



$(.box).each(function () {
var name, address, picture, id = ;
if (i < result.length) {
name = result[i].name;
address = result[i].address;
picture = result[i].boxpicture;
id = result[i].mallid;
}

$(this).find(.name).html(name);
$(this).find(.address).html(address);
$(this).find(.picture).attr(src, picture);
$(this).find(.hidden).html(id);
i++;
});


I have tried to check the data, and its working fine.



Now, lets say i want to alert the hidden id <p> when user clicks one of those <li class=box> that i generated above:



$(.box).click(function () {
alert(document.getElementsByClassName('hidden').innerHTML);
});


However this alert always returning undifined.


More From » jquery

 Answers
5

document.getElementsByClassName() returns a nodeList, not an element!



So it should be :



document.getElementsByClassName('hidden')[0].innerHTML


and as you probably have more .hidden elements, and only want the one inside the current .box (which would be this in the event handler)



this.getElementsByClassName('hidden')[0].innerHTML


but why not jQuery



$(.box).click(function(){
alert( $('.hidden', this).html() );
});

[#76702] Friday, July 26, 2013, 11 Years  [reply] [flag answer]
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josuea

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