I am creating a dynamic div in html which consists of multiple checkboxes. All these checkboxes and divs are being dynamically added to the html. I need to store some data about each div in the html to be accessed by javascript later. Can anyone show me an example where data can be added and retrieved dynamically in a div? I know HTML5 allows it and there are some other hacks to do it, but I am having trouble with syntax I guess.
5 Answers
This post explains data-* attributes.
You can create custom attributes within your divs like this:
<div id="div1" data-text="Hello. This is a custom attribute."></div>
Notice the data- prefix. this is absolutely necessary.
Then (using jQuery) you can access the custom attribute:
$('#div1').data('text'); => "Hello. This is a custom attribute."
So using this you can do stuff like:
if($('#div1').data('text') != "FreddieBobman"){
alert("HI!");
} else {
alert("Forever Alone!");
}
The above example will alert "HI!" because $('#div1').data('text') does not contain
FreddieBobman, it is in fact "Hello. This is a custom attribute."
To create these attributes use the following:
$('#div1').attr('data-name', 'value');
Our div with id of div1 now has another attribute, data-name, and the attribute has a value of value. Of course, you can change the value of attributes as well:
<div id="div1" data-text="Hello. This is a custom attribute."></div>
<script src="jquery.js"></script>
<script>
(function(){
$('#div1').attr('data-text', 'This is cool.');
}());
</script>
Now the div has data-text equal to "This is cool.", not "Hello. This is a custom attribute."
Comments
It is Obtain by the data attributes that you add dynamically to the elements ,And retrieve when you want !
SET Attribute :
var div = document.createElement('div');
div.setAttribute('data','my_data');
div.innerHTML = "I am a div";
document.body.appendChild(div);
GET Attribute :
div.getAttribute('data')
Comments
What you want is to add or retrieve data from div tags dynamically?
Using javascript function you can simply get corresponding div element using its id,
var container = document.getElementById('your_element_id');
Then you can add what you want.
var stringToAdd = "<p>something you want to add</p>";
container.innerHTML = stringToAdd;
Also you can use a different class with different features and set it as your div class. you need to add your features inside style tag under your class name. Then,
var elementID = document.getElementById(ID);
elementID.className ="your_new_class_name";
or you can set attributes for your tag.
elementID.setAttribute('display','inline');
Using jquery with javascript,
var elementID = document.getElementById(ID);
$(elementID).replaceWith( "<p>something you want to replace</p>" );
using class name or id you can dynamically append content using,
var stringToAdd = "<p>something you want to add</p>";
$(".your_class_name").append(stringToAdd);
also you can remove whole element using,
$(elementID).remove();
dataattributes like @Whymarrh said, or regular non-standard attributes if you don't care about compliance, but you could also doPHP/ASP/CGIif you want stuff from server-side, or just plainJavaScript/jQueryif all the data will be changed on the client side and no new data will come from the server. You could even do it fromAJAX.