How do you use jQuery's data() method to store and retrieve data associated with DOM elements?

Question

Aryan Kumar · Answer

jQuery's data() method allows you to store and retrieve data associated with DOM elements. This is useful when you need to store additional information about an element that is not part of its standard attributes.
To store data using the data() method, you can pass in a key-value pair as an argument to the method. The key should be a string that uniquely identifies the data, and the value can be any JavaScript object.
Here's an example of how to store data using the data() method:
$('#myElement').data('key', 'value');
In this example, we're storing a string value "value" with the key
"key" on the #myElement element.
To retrieve data using the data() method, you can pass in the key as an argument to the method. The method will then return the value associated with that key.
var myData = $('#myElement').data('key');
console.log(myData); // Output: "value"
In this example, we're retrieving the value associated with the key "key" on the
#myElement element.
You can also store multiple key-value pairs at once by passing in an object as the argument to the
data() method.
$('#myElement').data({
 'key1': 'value1',
 'key2': 'value2',
 'key3': 'value3'
});
In this example, we're storing multiple key-value pairs on the #myElement element.
One of the benefits of using the data() method to store data is that it allows you to keep your code organized and separate your application logic from the DOM. Instead of cluttering your HTML with data attributes, you can use the
data() method to store and retrieve data associated with DOM elements in your JavaScript code.

forum

How do you use jQuery's data() method to store and retrieve data associated with DOM elements?

Revati S Misra

1 Answers

Liked By