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Is_dir () function User Guide in PHP and is_dir User Guide Function: is_dir () Function: determines whether the specified file name is a directory. Note:Bool is_dir (string $ filename) Returns TRUE if the file name exists and is a directory.If filename is a relative path, check its relative path according to the current working directory. Note: the result of this function is cached. For more informatio

Javascript push User Guide and push User Guide The push () method can add one or more elements to the end of an array and return a new length. The returned value is the new length after the specified value is added to the array.Syntax: arrayObject. push (newelement1, newelement2,..., newelementX)Required. The first element to be added to the array.Optional. The parameter newelement2. The second element to b

JQuery plugin Development Guide and jquery Development Guide First, let's take a simple look at the most orthodox jQuery plug-in definition: Copy codeThe Code is as follows:(Function ($ ){$. Fn. Plug-in name = function (settings ){// Default parameterVar defaultSettings = {}/* Merge the default parameters and user-defined parameters */Settings = $. extend (defaultSettings, settings );Return this. each (func

Node + express + jade simple website guide, jade website Guide 1. Create a project folder: my_jade 2. Download the express and jade packages to the local device. I personally do not like to download them to a global one. I like to download them to the project folder. 3. Create related folders and files. Index. js: Style.css Gys. jade code: Index. jade: Layout. jade App. js Run app. j

Node + express + ejs simple page Getting Started Guide, ejs Getting Started Guide 1. Create the project folder my_ejs. 2. Use npm install express and npm install ejs Download these two guys. As for whether or not to set them to global, I am used to downloading them to the folder my_ejs in this project. Then create the corresponding file: Index. js: Form. ejs: Index. ejs App. js: Start run

Js array operation guide and js Array Operation Guide 1. Create an array Copy codeThe Code is as follows:Var arrayObj = new Array (); // create an ArrayVar arrayObj = new Array ([size]); // create an Array and specify the length. Note that the length is not the upper limit.Var arrayObj = new Array ([element0 [, element1 [,... [, elementN]); // create an Array and assign values It should be noted that, altho

JQuery chain User Guide and jquery User Guide In the previous example, the jQuery statement can be linked together, which not only shortens the code length, but also achieves special effects in many cases. Copy codeThe Code is as follows: The code above adds the style css1 to the In the jQuery chain, the subsequent operations are the objects of the previous operations. If you want the operation object to b

Use Python to compile the basic modules and framework Usage Guide for crawlers, and use guide for python Basic modulePython crawler, web spider. Crawls the website to obtain webpage data and analyzes and extracts the data. The basic module uses urllib, urllib2, re, and other modules. Basic usage, for example: (1) Perform basic GET requests to obtain html #! Coding = utf-8import urllibimport urllib2 url = 'H

Python Installation Guide and python3 Program Development Guide Note: My installation environment is centos6.4, a 32-bit system. (The content after # Is the description) 1. Preparation Centos comes with python, so you can directly execute python in shell. You can see the printed information, but the python2.6 version is too old, so you should re-compile a new version of python. However, it is better not to

CSS design guide, Study Notes 1, css design guide This article is about some notes and Experiences after reading Charles Wyke-Smit's "CSS design guide" over the past few days. I seem to be getting started with web design when I was a freshman, because it is not a computer Major, all of them are self-taught. I remember that I didn't know anything about CSS at the

PHP command line command instructions, php command line instructions. PHP command line Command Guide. php command line guide when a user opens the php page, the server executes the PHP command and sends the execution result to the user's browser, this is similar to the PHP command line command user guide, php command line User

Phalcon Framework Usage Guide, Phalcon usage guide When I first met Phalcon, I had a chance to use it recently when I first learned PHP. So say something about how it feels The individual is very fond of phalcon this framework, using dependency injection, so that the code organization is flexible, and the coupling is very low. But maybe the frame is too much to meet a few pits. More than a year on GitHub,

PHP is_file () function usage Guide, is_file usage guide The Is_file () function checks whether the specified file name is normal. Is_file-tells whether the filename is a regular file Usage:BOOL Is_file (string $filename) $file is a required parameterReturns TRUE if the file exists and is a normal file. Let's take a look at one example: The example above will output:BOOL (TRUE)BOOL (FALSE) Example two: E

PHP is_dir () function usage Guide, Is_dir usage guide Function: Is_dir () Function: Determine if a given file name is a directory DescriptionBOOL Is_dir (String $filename) Returns TRUE if the file name exists and is a directory.If filename is a relative path, the relative path is checked according to the current working directory. Note: The result of this function is cached. See Clearstatcache () for more

Python function Programming Guide (4): generator details, python programming guide 4. generator) 4.1. Introduction to generators First, be sure that the generator is an iterator. The generator has the next method and has the same behavior as the iterator, which means that the generator can also be used in a Python for loop. In addition, the special syntax support for generators makes it much easier to compi

IOS 7 UI Transition Guide-definition scope (iOS 7 UI Transition Guide-Scoping the Project) IOS 7 UI Transition Guide Preparing for Transition Before You Start Scoping the Project Supporting iOS 6 Updating the UI Appearance and Behavior Bars and Bar Buttons Content Views Controls Temporary ViewsSco

Write by nine days Yan Ling (jtianling) -- blog.csdn.net/vagrxie Sina Weibo -- Discussing newsgroups -- code library -- Douban I have heard that the three most widely used languages inside Google are c ++, Java, and python, But it is strange that Google style guide has c ++ and python, there are also JavaScript and objc, and it is estimated that there will be little internal use, but there is no java. This is confusing. Why?On stackoverflow, someone r

[Official tutorial] Asp. Net MVC4 Getting Started Guide (3): Add a view and mvc4 Getting Started Guide 3. Add a view · Original address: http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/adding-a-view · Address: http://www.cnblogs.com/powertoolsteam/archive/2012/11/06/2756711.htmlAsp. Net MVC4 Getting Started Guide (3): Add a view In this se

[Official tutorial] Asp. Net MVC4 Getting Started Guide (2): Add a controller and mvc4 Getting Started Guide 2. Add a controller · Original address: http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/adding-a-controller · Address: http://www.cnblogs.com/powertoolsteam/archive/2012/11/02/2751015.html Asp. Net MVC4 Getting Started Guide (2): Ad

Javascript Learning Guide, javascript authoritative guide It is too easy to get started with javascript, so that almost everyone can get started with it by looking at it at will. People with no foundation can claim that they have mastered javascript For three or five days. But it is very difficult to grasp js. It is difficult to make progress if you first want to ask others when learning a language. Because