How to reset javascript

王林
Release: 2023-05-17 15:41:09
Original
1699 people have browsed it

JavaScript is a commonly used scripting language used for web front-end development and interaction design, such as realizing form verification and interactive effects. During the development of web pages, you may encounter the need to reset form data. So, how does JavaScript reset the form?

What is form reset?

Resetting the form means clearing the data filled in the form and restoring it to the state when the form was initialized. After the user fills in some information and submits the form, if they need to fill it in again, an easy way is to reset the form.

Use JavaScript to reset the form

In JavaScript, you can use thereset()method to reset the form. This method works for all form element and form control types. Here is sample code to reset a form using JavaScript:





Copy after login

In this sample code, the form is reset using theresetForm()function. This function uses thegetElementById()method to get the form element, and then calls thereset()method to reset it. In HTML code, this function execution can be triggered by the button'sonclickevent.

The effect after resetting the form

When the form is reset, all data in the form will be cleared. Unfilled form fields are reset to their default or empty values, such as thevalueorcheckedattributes of aninputelement. Resetting the form does not clear the selected options, and theselectelement's selection reverts to the default option.

It should be noted that JavaScript reset form does not refresh or reload the page. It simply restores the data in the form to default or null values without affecting other parts of the page.

Summary

JavaScript is a very powerful scripting language that can be used to reset forms and clear form data. Using JavaScript to reset the form allows users to easily refill the form, eliminating the need for users to manually clear the form data every time. But it should be noted that resetting the form does not refresh the page, it just restores the form data to the default value or empty value.

The above is the detailed content of How to reset javascript. For more information, please follow other related articles on the PHP Chinese website!

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