How to operate JS to obtain the city and geographical location of the user

With the rapid development of social media, Xiaohongshu has become one of the most popular social platforms. Users can create a Xiaohongshu account to show their personal identity and communicate and interact with other users. If you need to find a user’s Xiaohongshu number, you can follow these simple steps. 1. How to use Xiaohongshu account to find users? 1. Open the Xiaohongshu APP, click the "Discover" button in the lower right corner, and then select the "Notes" option. 2. In the note list, find the note posted by the user you want to find. Click to enter the note details page. 3. On the note details page, click the "Follow" button below the user's avatar to enter the user's personal homepage. 4. In the upper right corner of the user's personal homepage, click the three-dot button and select "Personal Information"

In Ubuntu systems, the root user is usually disabled. To activate the root user, you can use the passwd command to set a password and then use the su- command to log in as root. The root user is a user with unrestricted system administrative rights. He has permissions to access and modify files, user management, software installation and removal, and system configuration changes. There are obvious differences between the root user and ordinary users. The root user has the highest authority and broader control rights in the system. The root user can execute important system commands and edit system files, which ordinary users cannot do. In this guide, I'll explore the Ubuntu root user, how to log in as root, and how it differs from a normal user. Notice

Many users have been added to the Ubuntu system. I want to delete the users that are no longer in use. How to delete them? Let’s take a look at the detailed tutorial below. 1. Open the terminal command line and use the userdel command to delete the specified user. Be sure to add the sudo permission command, as shown in the figure below. 2. When deleting, be sure to be in the administrator directory. Ordinary users do not have this permission. , as shown in the figure below 3. After the delete command is executed, how to judge whether it has been truly deleted? Next we use the cat command to open the passwd file, as shown in the figure below 4. We see that the deleted user information is no longer in the passwd file, which proves that the user has been deleted, as shown in the figure below 5. Then we enter the home file

How to use WebSocket and JavaScript to implement an online speech recognition system Introduction: With the continuous development of technology, speech recognition technology has become an important part of the field of artificial intelligence. The online speech recognition system based on WebSocket and JavaScript has the characteristics of low latency, real-time and cross-platform, and has become a widely used solution. This article will introduce how to use WebSocket and JavaScript to implement an online speech recognition system.

sudo (superuser execution) is a key command in Linux and Unix systems that allows ordinary users to run specific commands with root privileges. The function of sudo is mainly reflected in the following aspects: Providing permission control: sudo achieves strict control over system resources and sensitive operations by authorizing users to temporarily obtain superuser permissions. Ordinary users can only obtain temporary privileges through sudo when needed, and do not need to log in as superuser all the time. Improved security: By using sudo, you can avoid using the root account during routine operations. Using the root account for all operations may lead to unexpected system damage, as any mistaken or careless operation will have full permissions. and

WebSocket and JavaScript: Key technologies for realizing real-time monitoring systems Introduction: With the rapid development of Internet technology, real-time monitoring systems have been widely used in various fields. One of the key technologies to achieve real-time monitoring is the combination of WebSocket and JavaScript. This article will introduce the application of WebSocket and JavaScript in real-time monitoring systems, give code examples, and explain their implementation principles in detail. 1. WebSocket technology

Analysis of user password storage mechanism in Linux system In Linux system, the storage of user password is one of the very important security mechanisms. This article will analyze the storage mechanism of user passwords in Linux systems, including the encrypted storage of passwords, the password verification process, and how to securely manage user passwords. At the same time, specific code examples will be used to demonstrate the actual operation process of password storage. 1. Encrypted storage of passwords In Linux systems, user passwords are not stored in the system in plain text, but are encrypted and stored. L

Oracle database is a commonly used relational database management system, and many users will encounter problems with the use of table spaces. In Oracle database, a user can have multiple table spaces, which can better manage data storage and organization. This article will explore how a user can have multiple table spaces in an Oracle database and provide specific code examples. In Oracle database, table space is a logical structure used to store objects such as tables, indexes, and views. Every database has at least one tablespace,