Table of Contents
What is form reset?
Use JavaScript to reset the form
The effect after resetting the form
Summary
Home Web Front-end Front-end Q&A How to reset javascript

How to reset javascript

May 17, 2023 pm 03:41 PM

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 the reset() 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:

<form id="myForm">
  <label for="name">Name:</label>
  <input type="text" id="name" name="name"><br><br>
  <label for="age">Age:</label>
  <input type="number" id="age" name="age"><br><br>
  <input type="button" value="Reset" onclick="resetForm()">
  <input type="submit" value="Submit">
</form>

<script>
function resetForm() {
  document.getElementById("myForm").reset();
}
</script>
Copy after login

In this sample code, the form is reset using the resetForm() function. This function uses the getElementById() method to get the form element, and then calls the reset() method to reset it. In HTML code, this function execution can be triggered by the button's onclick event.

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 the value or checked attributes of an input element. Resetting the form does not clear the selected options, and the select element'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!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What is useEffect? How do you use it to perform side effects? What is useEffect? How do you use it to perform side effects? Mar 19, 2025 pm 03:58 PM

The article discusses useEffect in React, a hook for managing side effects like data fetching and DOM manipulation in functional components. It explains usage, common side effects, and cleanup to prevent issues like memory leaks.

Explain the concept of lazy loading. Explain the concept of lazy loading. Mar 13, 2025 pm 07:47 PM

Lazy loading delays loading of content until needed, improving web performance and user experience by reducing initial load times and server load.

What are higher-order functions in JavaScript, and how can they be used to write more concise and reusable code? What are higher-order functions in JavaScript, and how can they be used to write more concise and reusable code? Mar 18, 2025 pm 01:44 PM

Higher-order functions in JavaScript enhance code conciseness, reusability, modularity, and performance through abstraction, common patterns, and optimization techniques.

How does currying work in JavaScript, and what are its benefits? How does currying work in JavaScript, and what are its benefits? Mar 18, 2025 pm 01:45 PM

The article discusses currying in JavaScript, a technique transforming multi-argument functions into single-argument function sequences. It explores currying's implementation, benefits like partial application, and practical uses, enhancing code read

How does the React reconciliation algorithm work? How does the React reconciliation algorithm work? Mar 18, 2025 pm 01:58 PM

The article explains React's reconciliation algorithm, which efficiently updates the DOM by comparing Virtual DOM trees. It discusses performance benefits, optimization techniques, and impacts on user experience.Character count: 159

How do you prevent default behavior in event handlers? How do you prevent default behavior in event handlers? Mar 19, 2025 pm 04:10 PM

Article discusses preventing default behavior in event handlers using preventDefault() method, its benefits like enhanced user experience, and potential issues like accessibility concerns.

What is useContext? How do you use it to share state between components? What is useContext? How do you use it to share state between components? Mar 19, 2025 pm 03:59 PM

The article explains useContext in React, which simplifies state management by avoiding prop drilling. It discusses benefits like centralized state and performance improvements through reduced re-renders.

What are the advantages and disadvantages of controlled and uncontrolled components? What are the advantages and disadvantages of controlled and uncontrolled components? Mar 19, 2025 pm 04:16 PM

The article discusses the advantages and disadvantages of controlled and uncontrolled components in React, focusing on aspects like predictability, performance, and use cases. It advises on factors to consider when choosing between them.

See all articles