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  Routing events Routing events use one of the following three routing strategies: Buoyancy (bubbling):   Call the event handler on the event source. Routing events are then routed to subsequent parent elements until they reach the root of the element tree. Most routing events use a floating routing strategy. Floating route events a ...

preface Recently, I bought a month's standard example on Tencent cloud Internet of things platform and sent an ESP-12S development board to start the systematic learning of ESP8266. Therefore, I have reinstalled ubuntu several times. After thinking about it, I'd better record the ESP8266_ RTOS_ SDK_ The linux environment of V3.0 is built step ...

explainIn the actual development process, we are bound to use MySQL, Redis and other services. In order to realize the configuration of the system, we will put some configuration information in some files separately, and read the configuration file directly where we use it.There are many common file configuration methods, such as json, tomal, y ...

Weekly portal The ranking is 131. It has been quite stable recently~ 2089. Find the target subscript after array sorting Idea: traversal, counting Time complexity: O ( n ) \mathcal{O}(n) O ...

Browser's optimization strategy for reflow (rearrangement) and redraw If you only read the "sensitive" attribute and do not change the geometry of the node, only style calculation will be performed during js execution, and the layout will not be forced. testing environment Chrome version 96.0.4664.45 (official version) (64 bit) ...

Reference materials: Bird brother's Linux private dishes: Basic Edition, Liu Chao's interesting talk about Linux operating system, UNIX/Linux system management technical manual, 4th Edition, in-depth understanding of Linux kernel, 3rd Edition, advanced programming in UNIX environment, 3rd Edition, Linux kernel source code scenario analys ...

First of all, what do we need to know about the process? Narrow sense: a process is an ongoing program Generalized: it is the basic unit of operating system allocation Program: it is an inanimate entity waiting for the processor to give life. Once the program has life, it becomes a process. Differences between procedures and processes: ...

Title Description: Title portal Problem solving ideas: According to the meaning of the question, this question is to select several points on a tree to maximize the point weight, in which the selected points meet two conditions: If the parent node is selected, the child node cannot be selectedIf a child node is selected, the parent node c ...

previously on Hello everyone, VIsion Transformer has reached its sixth day. With the passage of time, the difficulty is getting greater and greater. I believe you have learned from ResNet, ViT Transformer and Diet. Today, you have learned the best ICCV paper Swin Transformer in 2021. Swin Transformer directly killed the list on major pound li ...

react source code analysis 13.hooks source code Video Explanation (efficient learning): Enter learning Previous articles: 1. Introduction and interview questions 2. Design concept of react 3.react source code architecture 4. Source directory structure and debugging 5. JSX & Core api 6.legacy and concurrent mode entry functions 7.Fiber archi ...