Vue Learning Notes--Basic Use of Vue-Router

1. SPA(Single Page Application) Better performance than back-end rendering Ajax front-end rendering, browser forward and backward operations are not supported SPA Single Page Application: There is only one page in the whole system, the content changes are local refresh through Ajax asynchronous request, and support browser address bar forward ...

Posted on Sun, 07 Jun 2020 14:18:31 -0700 by Lokolo

An easy to understand introduction to TypeScript

This article comprehensively introduces the common knowledge points of TypeScript, which is especially friendly for new beginners! This article will take you step by step to learn 14 knowledge points related to the introduction of TypeScript. See the following figure for a detailed outline: 1, What i ...

Posted on Sun, 07 Jun 2020 03:13:07 -0700 by begeiste

Distributed e-commerce project 44: release commodity function - save commodity information

Publish product function - save product information This chapter compiles the interface for saving commodity information. At the end of publishing commodity function, commodity information needs to be saved, corresponding to the front-end interface: Corresponding interface document: 19,New products PO ...

Posted on Sun, 07 Jun 2020 00:49:12 -0700 by vbzoom.com

2: The magic of constructors

Objectives: Be able to figure out the constructor and prototype Understanding inheritance of constructors Master some new methods of es5 1. Constructors and prototypes 1.1 general In a typical OOP language (such as Java), there is the concept of class. Class is the template of object, and object ...

Posted on Sun, 07 Jun 2020 00:28:03 -0700 by jmgarde

Tomcat startup process (how to accept the connection)

Let me take a look at the whole structure related to the connection part: Through the previous introduction, the server.xml Through the Digester to create the structure of the entire container, we will review the previous content. Some contents in the createStartDigester method (here create a Connec ...

Posted on Sat, 06 Jun 2020 01:37:27 -0700 by Jacquelyn L. Ja

OpenGL basic knowledge summary

Article catalog Image rendering pipeline The relationship among VAO, VBO and EBO Vertex attribute format Coordinate system Orthographic projection and perspective projection Combine transforms Right hand coordinate system video camera LookAt matrix Euler angle Glossary list Sample code interpreta ...

Posted on Fri, 05 Jun 2020 23:35:45 -0700 by affordit

xpath of Python 3 crawler

1, Introduction XPath is a language for finding information in XML documents. XPath can be used to traverse elements and attributes in an XML document. XPath is the main element of the W3C's XSLT standard, and XQuery and XPointer are built on top of XPath expressions. 2, Installation pip3 install lxml 3, Use Select node Common path expressions ...

Posted on Fri, 05 Jun 2020 20:15:25 -0700 by BinaryDragon

⑭ A series of usage methods of HTML5 canvas

Html5 Use picture & set background Gradient effect Draw text For example: the text in canvas is horizontally and vertically centered Shadow (text shadow & box model shadow) Pixel operation Example: operate on a single pixel (row and column) Add a mosaic to the picture synthesis Other uses ...

Posted on Thu, 04 Jun 2020 07:11:13 -0700 by sridhar golyandla

ZTree tool class summary, including: add, edit and delete nodes, and submit to the background

Related reading: Listen to switch switch switch in X-admin2.2, get attribute value and change status When Spring Boot integrates X-admin2.2, the Layui Font Icon fails to display normally or the solution to the problem of garbled code X-admin2.2 form submission method and precautions Error resolving template of Spring Boot ...

Posted on Tue, 02 Jun 2020 07:52:08 -0700 by genecide

Prototypes/Objects in javascript

1.javascript creates object new prototype chain function foo(){ } foo.prototype.z=3; var obj=new foo(); obj.x=1; obj.y=2; obj.z=5; console.log(obj.x);//1 console.log(obj.z);//5 console.log(typeof obj.toString());//string type console.log(ob ...

Posted on Mon, 01 Jun 2020 10:14:53 -0700 by James25