Web Develop

$dispatch and $broadcast broadcast and distribute events are deprecated in vue2. Props and $emit () can be used in parent-child components. How to implement communication between non-parent and child components, through instance a Vue instance bus

First, original value and reference valueRaw values: Simple data segments stored in stacks (stack) whose values are stored directly in the location where the variable is accessed.Reference value: The object stored in the heap (heap), the value

The principle of Ajax cross-domainAjax requests cross-domain error problem, the main reason is because the browser "homologous policy", you can refer toBrowser homology policy and its avoidance methodCors Request PrincipleCors is a universal

One, the php-fpm start parameterThe code is as follows:#测试php-FPM Configuration/usr/local/php/sbin/php-fpm-t/usr/local/php/sbin/php-fpm-c/usr/local/php/etc/php.ini-y/usr/local/php/etc/php-fpm.conf-t#启动php-FPM/usr/local/php/sbin/php-fpm/usr/local/php/

Use GET if: The interaction is more like a question (i.e., it is a safe operation such as a query, read operation, or lookup). Use POST if: The interaction is more like an order, or The interaction changes the state of

one. InstallationEnvironment Centos7.3 64-bitwget https://nodejs.org/dist/v8.9.4/node-v8.9.4.tar.gzCD node-v8.9.4/./configure--prefix=/usr/local/nodejsMakeMake installTwo. Nodejs Setting environment variablesvim/etc/profile.d/nodejs.sh#输入以下内容Export

One. Download package addressHttps://github.com/tanepiper/SublimeText-NodejsThen unzip and place it in the sublime text3\packages directory and rename it NodejsTwo. Modify the configuration file (two to be modified)1. In the Sublie Text 3 Packages

Django Build blog site (iv)The last article mainly talk about in the background article editor joins Markdown, already in the article detail page to the markdown parsing.Django Build blog site (i)Django Build blog site (ii)Django Build blog site

Splice is a method of JS primitive processing array, which can be processed without changing the referenceArrayobject.splice (index,howmany,item1,....., ItemX)Parameter descriptionIndex required. An integer that specifies the location of the

According to leisurely book to deal with. Finding my version won't work. Just walk the road. Turn away. Instead, it got through. Do not know for Mao. It's going to work.   Version: Chrome62,selenium 3.8.0 language: Python 2.7.6 js scroll bar

1.PHP installation memcache extended download extensionPHP default is not with memcache extension, so to use the first to go to the official website to download the extension.Official website: http://pecl.php.net/package/memcache/3.0.8/windows　　　　　　　

By summarizing the basic methods of horizontal and vertical centering, it is not so messy to comb the vertical horizontal center. Text-align:center + line-height For example, DIV2 uses text-align+line-height to achieve horizontal

Message Queuing can be implemented using MySQL, you can refer to the blog PHP using MySQL to implement Message Queuing, although with MySQL can be implemented, but generally not so, because the MySQL data are present in the hard disk, and from the

Prerequisites:1. Download and install the JDK2, enable the DevKit plug-in (default is enabled, no tube)3, installation of Intellij idea, PhpstormSDK Configuration:1. Start Intellij idea2. Configure plug-in SDK: Open File->project StructureClick the

Using Ehache to cache, you can log on to the authentication after the successful authentication authorization and permission information, but when the user exits, the user's corresponding permissions information can not be updated in real-time, so

1. Compile and install ApacheDownload: official website http://httpd.apache.org/docs/2.4/install.htmlwget http://ftp.twaren.net/Unix/Web/apache//Httpd/httpd-2.4.29.tar.gzwget http://ftp.mirror.tw/pub/apache//apr/apr-1.6.3.tar.gzwget

HTTP error 404.3-not found the page you requested is not available due to an extended configuration issue. If the page is a script, add a handler. If you should download the file, add a MIME map.Workaround:1. Open the IIS administration tool and

1 Historical origins sgml--1986 International Organization for Standardization publishes a standard in information management (ISO 8,879:1986 processing). HTML 2.0--released as RFC 1866 in November 1995 XML 1.0--1998, published the

In hibernate, each data table corresponds to an entity class, each entity class has a corresponding Hbm.xml configuration file matching, MyEclipse has a myeclipse Database Explorer View , It provides a built-in window that myeclipse directly

What are the advantages of Python over Java ?, Compared Recently in the background, many people talk privately about the prospects of Python and Java? Today, let's briefly talk about the differences between the two: I think C, Java and Python