Home Web Front-end JS Tutorial JavaScript method to display the number of elements in a form_javascript skills

JavaScript method to display the number of elements in a form_javascript skills

May 16, 2016 pm 04:06 PM
javascript Number of elements show form

The example in this article describes how to display the number of elements in a form using JavaScript. Share it with everyone for your reference. The details are as follows:

JavaScript displays the number of elements in the form, excluding the form itself

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

<!DOCTYPE html>

<html>

<body>

<form id="frm1" action="form_action.asp">

First name: <input type="text" name="fname" value="Donald"><br>

Last name: <input type="text" name="lname" value="Duck"><br>

<input type="submit" value="Submit">

</form>

<p>The number of elements in "frm1" are:

<script>

document.write(document.getElementById("frm1").length);

</script>

</p>

</body>

</html>

Copy after login

I hope this article will be helpful to everyone’s JavaScript programming design.

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
R.E.P.O. Best Graphic Settings
2 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)

Reasons and solutions for desktop layout being locked Reasons and solutions for desktop layout being locked Feb 19, 2024 pm 06:08 PM

What happens when the desktop layout is locked? When using the computer, sometimes we may encounter the situation where the desktop layout is locked. This problem means that we cannot freely adjust the position of desktop icons or change the desktop background. So, what exactly is going on when it says that the desktop layout is locked? 1. Understand the desktop layout and locking functions. First, we need to understand the two concepts of desktop layout and desktop locking. Desktop layout refers to the arrangement of various elements on the desktop, including shortcuts, folders, widgets, etc. we can be free

How to make a remote desktop connection display the other party's taskbar How to make a remote desktop connection display the other party's taskbar Jan 03, 2024 pm 12:49 PM

There are many users using Remote Desktop Connection. Many users will encounter some minor problems when using it, such as the other party's taskbar not being displayed. In fact, it is probably a problem with the other party's settings. Let's take a look at the solutions below. How to display the other party's taskbar during Remote Desktop Connection: 1. First, click "Settings". 2. Then open "Personalization". 3. Then select "Taskbar" on the left. 4. Turn off the Hide Taskbar option in the picture.

Simple JavaScript Tutorial: How to Get HTTP Status Code Simple JavaScript Tutorial: How to Get HTTP Status Code Jan 05, 2024 pm 06:08 PM

JavaScript tutorial: How to get HTTP status code, specific code examples are required. Preface: In web development, data interaction with the server is often involved. When communicating with the server, we often need to obtain the returned HTTP status code to determine whether the operation is successful, and perform corresponding processing based on different status codes. This article will teach you how to use JavaScript to obtain HTTP status codes and provide some practical code examples. Using XMLHttpRequest

How to display the wifi password QR code? It is recommended to scan the wifi password on WeChat in 3 seconds. How to display the wifi password QR code? It is recommended to scan the wifi password on WeChat in 3 seconds. Feb 20, 2024 pm 01:42 PM

You don’t need to enter the WIFI password often, so it’s normal to forget it. Today I will teach you the simplest way to find the password of your own WIFI. It can be done in 3 seconds. To check the WIFI password, use WeChat to scan it. The premise of this method is: there must be a mobile phone that can connect to WIFI. Okay, let’s start the tutorial: Step 1. We enter the phone, pull down from the top of the phone, bring up the status bar, and the WIFI icon. Step 2. Long press the WIFI icon to enter the WLAN settings; long press the WIFI icon. Step 3. Click Connected. Enter the WIFI name of your home, click Share Password, and a QR code will pop up; Step 4 of sharing WIFI password, we take a screenshot and save this QR code; Step 5, long press the WeChat icon on the desktop, and click Scan

Samsung will provide displays for Microsoft's MR headsets, and the devices are expected to be lighter and have clearer displays Samsung will provide displays for Microsoft's MR headsets, and the devices are expected to be lighter and have clearer displays Aug 10, 2024 pm 09:45 PM

Recently, Samsung Display and Microsoft signed an important cooperation agreement. According to the agreement, Samsung Display will develop and supply hundreds of thousands of OLEDoS panels for mixed reality (MR) head-mounted devices to Microsoft. Microsoft is developing an MR device for multimedia content such as games and movies. This device is expected to It will be launched after the OLEDoS specifications are finalized, mainly serving the commercial field, and is expected to be delivered as early as 2026. OLEDoS (OLED on Silicon) technology OLEDoS is a new display technology that deposits OLED on a silicon substrate. Compared with traditional glass substrates, it is thinner and has higher pixels. OLEDoS display and ordinary display

How to check the current directory in Linux? How to check the current directory in Linux? Feb 23, 2024 pm 05:54 PM

In Linux systems, you can use the pwd command to display the current path. The pwd command is the abbreviation of PrintWorkingDirectory and is used to display the path of the current working directory. Enter the following command in the terminal to display the current path: pwd After executing this command, the terminal will display the full path of the current working directory, such as: /home/user/Documents. In addition, you can use some other options to enhance the functionality of the pwd command. For example, the -P option can display

Tips for using Laravel form classes: ways to improve efficiency Tips for using Laravel form classes: ways to improve efficiency Mar 11, 2024 pm 12:51 PM

Forms are an integral part of writing a website or application. Laravel, as a popular PHP framework, provides rich and powerful form classes, making form processing easier and more efficient. This article will introduce some tips on using Laravel form classes to help you improve development efficiency. The following explains in detail through specific code examples. Creating a form To create a form in Laravel, you first need to write the corresponding HTML form in the view. When working with forms, you can use Laravel

How to get HTTP status code in JavaScript the easy way How to get HTTP status code in JavaScript the easy way Jan 05, 2024 pm 01:37 PM

Introduction to the method of obtaining HTTP status code in JavaScript: In front-end development, we often need to deal with the interaction with the back-end interface, and HTTP status code is a very important part of it. Understanding and obtaining HTTP status codes helps us better handle the data returned by the interface. This article will introduce how to use JavaScript to obtain HTTP status codes and provide specific code examples. 1. What is HTTP status code? HTTP status code means that when the browser initiates a request to the server, the service

See all articles