Home

How to get page elements using javascript

Obtaining methods include: 1. Obtaining elements through ID; 2. Obtaining elements through class names; 3. Obtaining elements through tag names; 4. Obtaining elements through CSS selectors; 5. Obtaining elements through child elements or parent elements. If you want to know more about JavaScript, you can read the articles below this topic.

184

javascript css selector array array length Get date single button ascii js Tutorial read

Table of Contents

How to get page elements using javascript

How to read web page elements with javascript

Commonly used methods include: 1. Get elements through ID; 2. Get elements through class names; 3. Get elements through tag names; 4. Get elements through CSS selectors; 5. Get elements through child elements or parent elements.

Apr 01, 2024 pm 04:58 PM

javascript css selector

How to get local username in javascript

JavaScript is a scripting language that is commonly used in web development. It can be used to obtain local user names to facilitate users to log in and verify on the website. Below, we will introduce several JavaScript methods to obtain local user names. 1. Use the navigator object. You can obtain browser information through the navigator object in JavaScript, including the user's operating system information and browser information. So we can use it to get the local username. The code is as follows:```var u

May 17, 2023 pm 03:08 PM

There are several ways to get html page value in javascript

There are three ways to obtain the HTML page value in JavaScript: 1. Use the "html element object.innerHTML" statement to return the content of the element; 2. Use the "html element object.innerText" statement; 3. Use "input element object.value" statement to return the content in the input box.

Mar 28, 2022 pm 07:17 PM

javascript

Is there any way to get the length of an array in javascript?

In JavaScript, you can use the length attribute of the array object to get the length of the array. This attribute can set or return the number of elements in the array. You only need to use the "array.length" statement to return a value representing the number of elements of the array object. That is the length value.

Oct 18, 2021 pm 06:04 PM

javascript array array length

What is the method to get date in javascript

Methods to get the date in javascript: 1. Use the [getTime()] method; 2. Use the [getFullYear()] method; 3. Use the [getMonth()] method; 4. Use the [getDate()] method; 5. Use [ getHours()] method.

Apr 15, 2021 am 11:39 AM

javascript Get date

How to get the selected state of a radio button using JavaScript

To use JavaScript to select the state of a radio button, you need to select the checked attribute of the radio button object. The checked attribute has two values, one is true, indicating that the radio button is selected, and the other is false, indicating that the radio button is not selected.

Dec 05, 2018 pm 02:28 PM

single button

JavaScript method to get the ASCII code corresponding to a character

The editor below will bring you an example of JS obtaining the ASCII code corresponding to the character. The editor thinks it’s pretty good, and now I want to give it to you and give it as a reference. Let’s follow the editor and take a look.

May 11, 2018 pm 03:02 PM

ascii javascript js

JavaScript reading tutorial: from beginner to proficient

JavaScript Reading Tutorial: From Beginner to Mastery With the development of the Internet, JavaScript has become an indispensable part of front-end development. It has powerful reading capabilities and can obtain and process data on web pages to provide users with a richer interactive experience. This article will start with basic knowledge and gradually introduce the reading function of JavaScript, including specific code examples to help readers from entry to proficiency. 1. Get element content JavaScript can use DOM (document

Mar 24, 2024 pm 10:39 PM

Tutorial read

JavaScript Advanced (6) Reading and Saving Files with JavaScript

Because Google does not yet provide the function of synchronizing plug-in data, importing and exporting plug-in configurations must deal with files. For security reasons, only IE provides APIs for accessing files; but with the arrival of HTML 5, other browsers have also supported it.

May 15, 2018 pm 05:27 PM

Learn to read and save files with JavaScript

The javascript column introduces how to read and save files using JavaScript.

Nov 25, 2020 pm 05:24 PM

How to solve the problem of garbled characters in local txt read by javascript

With the continuous development of Internet technology, JavaScript language has become one of the indispensable technologies in web development and mobile application development. JavaScript can achieve various dynamic effects on web pages and improve user experience. Reading local txt files is one of the requirements often encountered in development. However, sometimes you encounter the problem of garbled characters when reading local txt files. This article will detail the solution to this problem. 1. Analysis of the causes of garbled codes There are many reasons for garbled codes, but most of them are caused by a mismatch in encoding formats.

Apr 23, 2023 pm 04:40 PM