Where is jQuery.data() stored?

javascript jquery jquery-data
qwertymk picture qwertymk · Apr 28, 2011 · Viewed 9.7k times · Source

Where does jQuery store the values of the data() that it sets to DOM objects?

Is there some kind of variable like jQuery.dataDb or something, maybe even something private?

Is there any way to gain access to this object?

Answer

KushalP picture KushalP · Apr 28, 2011

Internally, jQuery creates an empty object called $.cache, which is used to store the values you set via the data method. Each DOM element you add data to, is assigned a unique ID which is used as a key in the $.cache object.

Related questions

Setting a value dynamically for data attributes using jquery

I use data attributes extensively for managing data in client side events. Is it possible to assign value dynamically to a data attribute using javascript or jquery? <li data-class_value="somevalue" class="myclass"></li> $('.myclass').…

Read More
How to remove value from FormData

Here is a way to append file to FormData : var data = new FormData(); jQuery.each($('#file')[0].files, function(i, file) { data.append('file-'+i, file); }); is it possible to do as below ? data[i].remove();??? or data[i] = file;?? …

Read More
How to get element data within click function?

Is there a tidier/easier way of getting the checkbox element's 'catNum' value when in its click() function? function createCategoriesList() { var catNames = new Array("First cat", "Second cat", "Third cat"); var catImageURLs = new Array("First.png", "Second.png", "Third.png"); …

Read More