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by Aaron: http://www.cnblogs.com/aaronjs/archive/2012/06/30/2570970.html Proficiency in JS regular expressions Regular expressions can:Testing a pattern of a string. For example, you can test an input string to see if there is a phone number mode or a credit card number mode in the string. This is called data validation.Replace text. Y ...

Introduction to DevStack    Devstack Ubuntu 14.04 and entOS 7 are currently supported, but most OpenStack developers around the world are using Ubuntu 14.04. So in order to reduce the trouble, it is recommended that you use Ubuntu 14.04.    By default, both Devstack and OpenStack are installed using Master's code, which ofte ...

Original text: How To Use Object Methods in JavaScriptAuthor: Tania RasciaTranslator: Boxuan introduce In JavaScript, object Is a collection of key/value pairs. Values can contain attributes and methods, and can contain all other JavaScript data types, such as strings, numbers, and Boolean values. All objects in JavaScript come from the parent ...

Recently, I added a new monitor, so I also have two monitors, one of which needs to be set up, but after setting up, restart, double display settings fail. After some troubles, we finally found the right way to set it up. 1,xorg.conf / etc/X11/xorg.conf is a file that stores a series of hardware configurations, and the config ...

1. Create docker-compose.yml file Start by creating a docker-compose.yml file that uses docker-compose to organize containers. $ mkdri /zabbix #Create a zabbix file in the root directory $ cd /zabbix $ touch docker-compose.yml #Create yml container marshalling file 2. Writing the contents of yml documents $ ll $ vim ...

Reference material: [1]Learn Linux (8) Soft and Hard Links Every Day [2]Twenty practical examples of Linux ls commands The instructions we learn today are the most common of our instructions, ls. The instructions refer to the man manual. Sketch ls (LiSt directory contents) lists directory contents. format ls [optio ...