vue picture preload

Objective: Picture preloading can make users browse the following pages without half of the loading of the picture leading to poor browsing. Method 1 Pictures should be preloaded when the project opens, and pre-loaders should be added to beforeCreate in App.vue App.vue beforeCreate(){ let count = 0; let imgs = [ //use requi ...

Posted by patelp7 on Thu, 03 Oct 2019 04:03:46 -0700

Using echarts to display travel footprints

Preface There has always been a dream of traveling around the world, traveling around other countries, experiencing human civilization in different countries, seeking mountains and rivers, and experiencing the great creation of the creator nature. After all, life is not only about the present, but also about poetry and distance. Over the years, ...

Posted by leeharvey09 on Thu, 03 Oct 2019 02:11:37 -0700

Loop structure in JS

while loop:Syntax:   while (expression) {   code...   }Rules of implementation:The expression (expression) is judged first, and if it is true, the code is executed in a loop, and then the judgement is made...If it is false, it will not enter. Note: If expression is false for the ...

Posted by esport on Thu, 03 Oct 2019 00:29:26 -0700

Conflict Resolution between swiper and SUI Framework Roadcasting Map

Conflict Resolution between swiper and SUI Framework Roadcasting Map Code <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>My life</title> <meta name="viewport" content="in ...

Posted by MichaelHe on Wed, 02 Oct 2019 20:00:56 -0700

Three-step implementation widget first opens the prompt "add to my widget"

I use Taro framework to develop, so this example also takes Taro code as an example, if you use small program language, uni-app and other frameworks, do not worry, because the principle is the same. First, understand the design principle. The key to the problem is "how to judge the first opening". There are two ways: 1. After opening ...

Posted by julius_h on Wed, 02 Oct 2019 19:06:01 -0700

WebStorm Download and Installation

As we all know, WebStorm is a JavaScript development tool of jetbrains company. At present, it has been praised by Chinese JS developers as "Web front-end development artifact", "the most powerful HTML5 editor", "the most intelligent JavaScript IDE" and so on. Homologous to ...

Posted by jimmayhugh on Wed, 02 Oct 2019 14:52:33 -0700

Label-based Image Classification of Web Documents

Dynamic Web TWAIN The latest version of the branch provides the Tag management interface. It is easy to label and classify the scanned images. This article shares how to use it. Picture Classification of Web Documents Create an HTML file and refer to the JS file of Dynamic Web TWAIN: <script type="text/javascript" src="https://unpkg.com/dwt/ ...

Posted by Paws on Wed, 02 Oct 2019 12:20:51 -0700

The Combination Model of Learning Notes in javascript Design Patterns

Combination mode Combination pattern is to combine objects into a tree structure to represent the "part-whole" hierarchical structure. Furthermore, it uses the polymorphism of objects to treat the combination objects and individual objects in a unified way. Note: Combination patterns are not paternity Consistency of Leaf Object Ope ...

Posted by shivani.shm on Wed, 02 Oct 2019 09:09:58 -0700

render rendering function of Vue and application of JSX

I. Template Defects The greatest feature of template is that it is difficult to expand and difficult to expand. May cause logical redundancy <Level :type="1">Ha-ha</Level> <Level :type="2">Ha-ha</Level> <Level :type="3">Ha-ha</Level> Level components need to generate different labels for different type s &l ...

Posted by sharey on Wed, 02 Oct 2019 02:33:06 -0700

form B for 2.2 HTML Web pages

form B for 2.2.2 HTML Web pages Description: Form form 1. In the form form form, use the HTML version 4 tag Text box, password box, radio button, multi-selection button, drop-down list box, multi-line text file upload, submit button, reset button, ordinary button 2. In the form form form, use the HTML ...

Posted by samuraitux on Tue, 01 Oct 2019 20:02:33 -0700