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Friendly reminder: you need to know some basic html/Css/Javascript knowledge to read this article The implementation of the front-end common tab key uses the principle that when clicking an element, the display attribute of css is operated through javascript to control the display (block) and display (none) of another element It should be not ...

Bean-Mapping In daily development, it is often necessary to assign the properties of one object to another. There are many common tools, but they are not concise or powerful enough. Spring bean utils, which we often use, has good performance, but not enough features. Bean-Mapping It provides many rich features for daily development. If you are ...

It was written in the previous article Instantiation process of vue constructor , just a rough description of the vue instance. There is no detailed description of the process of converting the vue component and virtual DOM into real Dom and page mounting. This paper mainly describes the initialization process of vue components and the conversi ...

Configuration files are arguably one of the most frequently encountered parts of our use of nginx. After we configure the appropriate configuration items, we typically use the. /sbin/nginx -t command to test the configuration file for parameter errors and reload nginx.This paper will first explain the configuration of nginx configuration file w ...

Introduction As a powerful static type checking tool, TypeScript is now visible in many large, medium-sized applications and popular JS libraries.As a weakly typed language, JS modifies the type of a variable without taking a moment to write code, resulting in unexpected runtime errors.However, TypeScript helps us solve this problem during comp ...

Implement Promise Simulated (Small White Edition) This article talks about how to simulate the basic function of a Promise. There are already many articles like this on the Internet. There will be more ink in this article because you want to use your own understanding and spoken in vernacular Promise's basic specifications are referenced in thi ...

A Certification Component 1. Local Authentication Components We know that we go to the dispatch method to distribute regardless of the route or the corresponding view class. In the source code of the dispatch method in the APIView class we see, there is a self.initial(request, *args, **kwargs), so the three default components of authentication, ...

Catalog I. FloatingActionButton II. Snackbar III. CoordinatorLayout IV. CardView I. FloatingActionButton 1, effect For example, the button in the lower right corner: 2, use <android.support.design.widget.FloatingActionButton android:id="@+id/fab" android:layout_width="wrap_content" ...

Location acquisition method of geolocation API global positioning system Physical location mapped by location information based on IP address Cellular telephone triangulation, according to the distance between different cellular base stations to determine the location. Wi Fi access point completes triangulat ...

Official text gradle learning official translation website 1. New project Configure build.gradle //Use the official 'groovy' plug-in apply plugin: 'groovy' //Add api dependency dependencies {dependencyHandler -> dependencyHandler .compile gradleApi() dependencyHandler. compile localGroovy() } //Add the currently used ve ...