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What is change() and submit() in jQuery?
change() and submit()
In jQuery, change() and submit() are two methods commonly used to handle events related to form elements.
change() Method:
The change() method is used to bind an event handler to the "change" JavaScript event. This event is triggered when the value of an element has been changed (typically used with form elements like <input>, <select>, and <textarea>).
Syntax:
-
selector: A string containing a selector expression.
-
handler: A function to execute when the "change" event is triggered.
Example:
In this example, the function inside change() will be executed whenever the value of the input field changes.
submit() Method:
The submit() method is used to bind an event handler to the "submit" JavaScript event. This event is triggered when a form is submitted.
Syntax:
-
selector: A string containing a selector expression.
-
handler: A function to execute when the "submit" event is triggered.
Example:
In this example, the function inside submit() will be executed when the form is submitted. The event.preventDefault() prevents the form from actually submitting, allowing you to handle the submission using JavaScript.
These methods are useful for enhancing the interactivity and functionality of forms in web applications.
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