Javascript Modular programming (1): Writing modules
Body:
As websites gradually become "Internet applications", Javascript code embedded into webpages is becoming increasingly large and complex. extjs is a good example.
Web pages are becoming more and more like desktop programs, requiring a division of labor and collaboration between teams, schedule management, unit testing, and so on... developers have to use software engineering methods to mana
Module)
Stability: 5-locked
Node has a simple module loading mechanism. The files and modules in node correspond one to one. For example, foo. js loads the circle. js module in the same folder.
Foo. js content:
[Javascript]Console. log ('the area of a circle of radius 4 is'+ Circle. area (4);
Var circle = require ('./circle. js ');Console. log ('the area of a circle of radius 4 is'+ Circle. area (4); circle. js content: [javascript] view plaincopypri
OverviewModule BriefPython__name__Module Benefits
Improved maintainability of the code
Improved code consumption, when a module is complete, can be referenced in multiple places
Conflicts between function names and variable names can be avoided
ARGV: Get a list of command-line arguments
Import SYS introduces the sys.py module in the Python standard library
Import: This is the method of introducing a module (mentioned later)
Sys.path: Contains a list of
As Web sites become "Internet apps," JavaScript code embedded in Web pages is growing larger and more complex.
Web pages are more and more like desktop programs, need a team division of work, progress management, unit testing and so on ... Developers have to use the software engineering approach to manage the business logic of Web pages.
JavaScript modular programming has become an urgent requirement. Ideally, developers only need to implement the core business logic, and others can load the
Module Path resolution rules
Experienced C Programmers write a new program first from the make file. Similarly, before using Nodejs to write a program, in order to have a good start, first you need to prepare the directory structure and deployment of the code, just like the building to build a scaffold first. This chapter will introduce the various knowledge associated with it.
Module Path resolution rulesas we already know, the Require function supports the absolute path at the beginning of t
Decoupling between ios service modules
* This article requires a little runtime knowledge. If you do not know runtime, quick understanding of Runtime of Objective-C:
Http://mp.weixin.qq.com? _ Biz = MzIxNDI0OTAzOQ == mid = 403005635 idx = 1 sn = 71375cb0dee51487c90087d488ff59fe
Problem:
An app is usually composed of many modules, and all modules are inevitably
are better at English, we suggest you read the following link to learn about HTTP pipeline and HTTP module,
Http://msdn.microsoft.com/en-us/magazine/cc301362.aspx
Http://msdn.microsoft.com/en-us/library/ms178473 (V = vs.80). aspx
If you want to look at the comfortable Chinese, we suggest you read the following article about the HTTP request processing process written by the eldest brother:
Http://en.wikipedia.org/wiki/HTTP_pipelining
HTTP handler introduction:
Http://www.tracefact.ne
As websites gradually become "Internet applications", Javascript code embedded into webpages becomes increasingly large and complex.
Web pages are becoming more and more like desktop programs, requiring a division of labor and collaboration between teams, schedule management, unit testing, and so on... developers have to use software engineering methods to manage the business logic of web pages.
Javascript Modular programming has become an urgent demand. Ideally, developers only need to impleme
to implement
There is no doubt that it is safer to fail the program accidentally because of some minor negligence.
Try: Except this exception handling mechanism is to replace if that way, allowing your program to enhance robustness and fault tolerance without sacrificing readability
Exception types are customized for each exception (Python unifies classes and types, type is a Class), and for the same exception, a except can be caught, an exception that can handle multiple
One, Module 1, what is a module?Common scenario: A module is a file that contains Python definitions and declarations, and the file name is the suffix of the module name plus the. Py.In fact, the import loaded module is divided into four general categories:1, code written using Python (. py file)2, a C or C + + extension that has been compiled as a shared library or DLL3, Package a set of modules4, built-in module with c written and linked to the Python interpreter2, why use a moduleIf you quit
Modules and autolinkingOC has been constantly improving since Apple took over. With the growth of OC developers from mobile development, it is also an objective requirement that Apple provide a variety of good features to support such a large developer community. IOS4 era of the gcd,ios5 era of the ARC,IOS6 era of all kinds of simplification, every year we can see OC in becoming a kind of advanced language efforts. Based on the Smalltalk and runtime,
I. SummaryThis article mainly introduces the concepts of Linux kernel modules and the simple module development process. Mainly from the module development of common directives, kernel module program structure, module usage count and module compilation and other aspects of the kernel module is introduced. In the Linux system development process, the development of modules in the form of the importance of se
/etc/modules:Kernel module files, which are listed in the module will be loaded automatically when the system starts./ETC/MODPROBE.D:Stores directories that prohibit loading or loading kernel module scripts.The following is the process that I add the NetFilter module to:echo "1" >/proc/sys/net/ipv4/ip_forwardVi/etc/rc.localAdd echo "1" >/proc/sys/net/ipv4/ip_forward before exitDepmod-a LsmodCat/etc/modules......#added by Changfugang#realtek 725n WiFi
The official explanations of the OS and SYS modules of the reproduced article are as follows:Os:this module provides a portable the by using operating system dependent functionality.This module provides a convenient way to use the operating system functions.Sys:this module provides access to some variables used or maintained by the interpreter and to functions that interact St Rongly with the interpreter.This module allows access to variables used or
I. Using modulesIntroducing the SYS module, using the Import#!/usr/bin/env python#-*-coding:utf-8-*-' a test module ' __author__ = ' Michael Liao ' import sysdef Test (): args = s YS.ARGV If Len (args) ==1: print ' Hello, world! ' Elif len (args) ==2: print ' Hello,%s! '% args[1] else: print ' Too many arguments! ' If __name__== ' __main__ ': Test ()Running Python hello.py Michael gets the sys.argv is [' hello.py ', ' Michael ']Variables that use underscores _
78957901Python 3.x versions of Urllib and URLLIB2Now Python is out of the 3.5.2.In Python version 3, urllib2 This module is no longer separate (that is, when you import Urllib2, the system prompts you to not have this module), URLLIB2 was merged into the Urllib, called Urllib.request and Urllib.error.Urllib the whole module is divided into Urllib.request, Urllib.parse, Urllib.error.Cases:where Urllib2.urlopen () becomes Urllib.request.urlopen ()Urllib2. Request () becomes urllib.request.Request
+ Ngx_http_echo_module was configuredChecking for PCRE Library ... foundChecking for PCRE JIT-support ... not foundChecking for OpenSSL library ... not found./configure: ERROR:SSL modules require the OpenSSL library.You can either does not enable the modules, or install the OpenSSL libraryInto the system, or build the OpenSSL library statically from the sourceWith Nginx by using--with-openssl=Workaround:sud
One. Optional signal for kernel modules1. Module declaration(1). Module_license (Compliance Agreement)Affirm the license agreement that the module complies with, such as: "GPL", "GPL V2"(2). Module_author (author)Author of the Application module(3). module_description (function description of the module)Function of the application module(4). Module_version (v1.0)Version of the application module2. Module parameters The variable that holds the module parameter is specified by the macro Module_
Learning python for a short period of time, always stuck in a simple grammar, can't really appreciate the power of Python. Today we learned the reference method for custom modules. When referring to the module, the compiler will first in the current directory, then go to Sys.path, Python's installation directory to find the module you refer to, if not, will be an error.In the first case, your module is in the same directory as the module you want to u
Module--Code encapsulationModules are the basic way to organize your code in Python. Python scripts are saved with a text file with the extension py, a script can be run alone, or it can be imported to run in another script, which we call Modules (module) when the script is imported and run. That is, all the code files we write in Python can be called modules.When importing, the module name is the same as the file name of the script, for example, we w
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