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

JS Object-Oriented-Dynamic Prototype Model and Parasitic Construction Model

Dynamic prototype model The combination of constructor model and prototype model makes OO language programmers confused when they see independent constructors and prototypes. Dynamic prototype model is devoted to solving this problem. It encapsulates all information in the constructor, initializes the prototype in the constructor (only if nece ...

Posted by yakk0 on Tue, 01 Oct 2019 18:46:42 -0700

Realization of Waterfall Flow

Now many websites will use the effect of waterfall flow. What is waterfall flow and where are they used? Perhaps this is one of the effects, generally used for sites that can not guarantee the size of the picture. First look at layout + css 1 .cont{margin: 0 auto;position: relative;} 2 .box{float: left;padding: 6px} 3 ...

Posted by thomasadam83 on Tue, 01 Oct 2019 09:14:50 -0700

tab bar switching production

tab bar switching production First map Requirement 1: Default state, the first tab is selected to show the content of the first tab Policy: The first tab defaults to the selected style, the first tab corresponds to display: block, and the other display is set to none. Requirement 2: Tab Module: Clicked into red and white letters, and the ...

Posted by A3aan on Tue, 01 Oct 2019 08:45:03 -0700

jQuery source code analysis of each function $. each and $. fn.each method in detail

An $. each is generally used to traverse an array or object, $. fn.each() is the operation that a jQuery instance can perform (because $. FN is the prototype of a jQuery object) each is used to traverse an array or object, perform drop-back functions in turn, and finally return the passed array or object to support the chain operation. Three pa ...

Posted by toms on Tue, 01 Oct 2019 07:22:43 -0700