ext listening event method [primary]_YUI.Ext related
<script>function a(){alert('some thing');}Ext.onReady(function(){ <BR> Ext.get("btnAlert").addListener("click",a);//这里监听 <BR> //或者使用 <BR> Ext.get("btnAlert").on("click",a);//效果相同 <BR> });</script>
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An in-depth discussion of the physical storage structure of the Linux ext2 file system
Mar 14, 2024 pm 09:06 PM
The Linuxext2 file system is a file system used on most Linux operating systems. It uses an efficient disk storage structure to manage the storage of files and directories. Before we delve into the physical storage structure of the Linuxext2 file system, we first need to understand some basic concepts. In the ext2 file system, data is stored in data blocks (blocks), which are the smallest allocable units in the file system. Each data block has a fixed size, usually 1KB, 2KB or 4
What are the iframe listening events?
Aug 28, 2023 pm 01:49 PM
The iframe listening events include onload event, onunload event, onbeforeunload event, onmessage event and onerror event. Detailed description: 1. Add an onload event, which is triggered when the content in the iframe is loaded; 2. Add an onunload event, which is triggered when the content in the iframe is unloaded; 3. Add an onbeforeunload event, which is triggered before the content in the iframe is unloaded. .
Analyze the physical organization of the Linux ext2 file system
Mar 15, 2024 am 09:24 AM
The Linuxext2 file system is one of the commonly used file systems in the Linux operating system and has good performance and stability. This article will analyze the physical organization of the ext2 file system in detail and provide some specific code examples to help readers better understand. 1. Overview of the ext2 file system The ext2 file system is the earliest second-generation extended file system on the Linux system. It has made certain improvements in the performance, reliability and stability of the file system. It mainly consists of super block, group scan
What is the meaning of bubbling events
Feb 19, 2024 am 11:53 AM
Bubbling events mean that in web development, when an event is triggered on an element, the event will propagate to upper elements until it reaches the document root element. This propagation method is like a bubble gradually rising from the bottom, so it is called a bubbling event. In actual development, knowing and understanding how bubbling events work is very important to handle events correctly. The following will introduce the concept and usage of bubbling events in detail through specific code examples. First, we create a simple HTML page with a parent element and three children
What is the difference between ext3 and ext4 in Linux system?
Feb 19, 2024 am 11:48 AM
A file system is an organization method for files stored on storage devices such as disks. The Linux system can support a variety of currently popular file systems, including: EXT2, EXT3, EXT4, FAT, FAT32, etc. So what are the differences between ext3 and ext4 in Linux systems? The following is a detailed introduction. What is the difference between ext3 and ext4 in Linux systems? 1. Larger file system and larger files ext3: 16TB file system and maximum 2TB file; ext4: 1EB file system and maximum 16TB file. 2. Unlimited number of subdirectories ext3: 32000 subdirectories; ext4: unlimited number of subdirectories.
File system selection and optimization suggestions for building a web server on CentOS
Aug 05, 2023 pm 03:35 PM
Introduction to file system selection and optimization suggestions for building a web server on CentOS: When building a web server, it is extremely important to select an appropriate file system and optimize it. This article will introduce the file systems commonly used when building web servers on CentOS and provide corresponding optimization suggestions. 1. File system selection XFS file system XFS is an advanced, high-performance log file system. It has fast and efficient file system recovery capabilities and excellent I/O operation performance for large-capacity storage. XFS versus large
Detailed explanation of the physical structure of the ext2 file system under Linux
Mar 14, 2024 am 10:03 AM
Detailed explanation of the physical structure of the ext2 file system under Linux. In the Linux system, ext2 is a commonly used file system type. It is a relatively simple and efficient file system. In this article, we will delve into the physical structure of the ext2 file system, including super blocks, group descriptors, inode tables, data blocks, etc., and also provide specific code examples to help readers better understand. 1. Super block (SuperBlock) The super block is one of the most important data structures in the ext2 file system.
How to solve 'undefined: path.Ext' error in golang?
Jun 24, 2023 pm 01:55 PM
In the process of developing with Golang, sometimes we encounter some strange errors and problems. Among them, the error message "undefined: path.Ext" may appear. This problem is usually caused by missing import packages. We can use the following methods to solve this problem. Method 1: Import the "path" package When using the path.Ext function, we need to import the "path" package. If you haven't imported the package yet, you can add it to your code
