Programming VIP

This article was written on the eve of the Mid Autumn Festival in 2021prefaceHello, I'm Lin Sanxin. The Mid Autumn Festival is coming. I wish you a Happy Mid Autumn Festival!!! I was thinking, about the Mid Autumn Festival, what can I write to share with you? On this day, I was watching journey to the West and suddenly thought of my childhood g ...

Cascading Style Sheets (CSS) Style used to define page elements Set font and color Set position and size Add animation effects h1 { color: white; font-size: 14px; } h1: Selector color: selector Property white: property Value font-size:14px; : Declaration Using CSS in pages Outer chain <link rel="stylesheet" href="/assets/ style.css " ...

1, Exclusive thought 1. Exclusivity: If there is the same group of elements, we need to use the exclusive idea algorithm of loop if we want an element to implement a certain style Clear all elements (kill others)Style the current element (leave me alone)Note that the order cannot be reversed. Kill others first, and then set yourself (1) Sam ...

1. Data type Data types are literal meaning and represent various data types. Data types exist in any language because data is diverse. JavaScript mainly contains 8 data types, which can be divided into basic type and reference type: Basic data type Number number (including integer and floating point numbers) String string boolean Boo ...

Learning objectives Article reprint Le byte Service configuration status Configuration files are familiar to us. In the microservice system, each microservice not only has code, but also needs to connect other resources, such as database configuration or functional switch MySQL, Redis, Security and other related configurations. In additio ...

Vue01 Development process of front-end development technology Earliest: native DOM cooperates with JS to operate web pagesDevelopment: use encapsulation techniques to encapsulate the native DOM into a jQuery framework At present: a large number of market shares are occupied by vue – at present, there are few, and most old projects ar ...

When it comes to maps, you must be familiar with them. You should have used Baidu maps, Gaode maps, Tencent maps, etc. if map related development needs are involved, there are many choices. For example, the previous maps will provide a set of js API. In addition, there are some open-source map frameworks that can be used, such as OpenLayers, Le ...

network application axios: import first and then reference axios.get("url").then(function(response){ }, funcition(err){}) Vue Foundation Vue data unidirectional transmission Vue is actually based on MVVM design pattern Controlled area: View Instance object: View Model data: Model in Vue Vue data bidirectional transmission v-mode ...

Problem background: 1 It takes 2min to load the page for the first time. If it cannot be opened for half a day, a white screen will appear. After optimization, it will become 30s                    2. The file after build is too large, such as a main JS file is 7.9M before optimization and 1.5 ...

1. 9 built-in objects of JSP (used directly without creating) pageContext, page, page Request completes a request and the response object responds Session one session, application the whole server, exception exception exception, out output object, config configuration 2.4 large scope (different scope of storage attributes < scope &gt ...