jQuery val() Method
The jQuery val() method is used to interact with form input elements, such as text fields, radio buttons, checkboxes, and dropdowns. It allows you to retrieve and set the values of these input elements. Here are examples illustrating the usage of the val() method:
Getting Input Value
Consider an HTML form with an input field:
To retrieve the value of the input field using jQuery:
Setting Input Value
You can also use the val() method to set the value of an input element:
After executing this code, the value of the input field will change to "New Value."
Get the Values of Text Fields with val() method
Set the Values of Text Fields with val() method
Working with Dropdowns
For dropdowns, the val() method retrieves or sets the value of the selected option:
In this example, the dropdown will be updated to display "Option 2" as the selected value.
When do I use .val() vs .html?
Use the .val() method when you want to interact specifically with form input elements, such as text fields, checkboxes, radio buttons, and dropdowns. It allows you to get or set the values of these input elements, which is especially handy for handling user input and form submissions. On the other hand, you use the .html() method when you need to manipulate the HTML content within elements, including tags and nested elements. It's suitable for scenarios where you want to dynamically change or update the entire HTML structure of an element, such as working with paragraphs, headings, and divs.
The val() method is particularly useful when working with form elements and collecting or setting user input data. It simplifies the process of extracting values from input elements or populating them with predefined values.