Programmer Think

The accelerator module manages the device acceleration sensor, which is used to obtain the device acceleration information, including the acceleration information in three directions: x (screen horizontal direction), y (vertical screen horizontal direction) and z (vertical screen plane direction). Via plus Accelerometer obtains the device accel ...

From: Micro reading https://www.weidianyuedu.com/content/4317415636514.html Throughout all the key knowledge that must be mastered in JavaScript, function is the most easily ignored knowledge point when we first learn. Many people and articles may tell you that object-oriented is very important and prototype is very important, but few people ...

The final code is at the end Basic structure The main body adopts the scrollView component of taro and sets a fixed height for it to make its sliding effective. An onScrollToLower event is configured to trigger the bottom event. Drop down scroll component import React from "react"; import { ScrollView } from "@tarojs/components"; import { ...

ES6: the difference between VaR, let and const 1, var In ES5, the attributes of top-level objects are equivalent to global variables. Variables declared with var are both global variables and top-level variables Note: top level objects refer to window objects in browser environment and global objects in Node environment var a = 10; consol ...

The author developed a navigation website in the early stage and always wanted to reconstruct it. He was lazy for several years. Finally, after learning about the micro front-end method, he made up his mind. Because he had no chance to practice at work, he had no choice but to try his own website and think about it. The broken navigation websit ...

express brief introduction Express is based on node JS platform, a fast, open and minimalist web development framework. Build web server The essence of Express: it is a third-party package on npm, which provides a convenient way to quickly create a Web server. Using the Express development framework, you can easily and quickly create a Web ...

catalogue First meet vue vue template syntax class 2 Data binding Two ways of writing data and el MVVM model Event object Keyboard events Basic use of events Name Case Weather case Monitoring properties Depth monitoring watch vs. computer Bind class style Bind style conditional rendering List rendering Function and principle ...

ES6: object new extension 1, Attribute abbreviation In ES6, when the object key name is equal to the corresponding value name, it can be abbreviated const baz = {foo:foo} // Equivalent to const baz = {foo} Methods can also be abbreviated const o = { method() { return "Hello!"; } }; // Equivalent to const o = { method: funct ...

1. General The FormData type is actually defined at XMLHttpRequest Level 2. It facilitates the serialization of tables and the creation of data in the same format as the form (for XHR transmission, of course). 2. Constructor There are several ways to create a formData object instance 1. Create an empty object instance var formData = new FormDa ...

1. slot 1.1 slot - basic use of slot The slot of the component is also to make our package more scalableIt allows users to decide what is displayed inside the component The basic use of slots is added in the template label Default value button for slot If there are multiple values, they will be used as replacement elements when compo ...