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ES6 is recommended for program optimization and aesthetics. (All javaScript syntax after ES5 is collectively referred to as ES6) 1. About Value Selection Values are common in programs, such as obj from an object. const obj = { a:1, b:2, c:3, d:4, e:5, } Make complaints: const a = obj.a; const b = obj.b; const c = obj. ...

2021SC@SDUSC This article is sent synchronously in the personal blog, and the address is Redbit's personal journey outline Last Fast JSON source code analysis -- deserialization (6) The two parsearray APIs of fastjson are deeply compared, and the API design and internal logic architecture are analyzed through similarities and differ ...

This article was first published in https://robberphex.com/error-reporting-with-kubernetes-events/A Kubernetes Webhook is maintained in the group, which can intercept the creation request of pod and make some modifications (such as adding environment variables, adding init container, etc.).The business logic itself is very simple, but if there ...

Routing query function fib_ table_ The lookup parameter specifies the routing table tb, flow information flp, and flag FIB required for the query operation_ Flags, return the result res. The destination address daddr of the flow structure flp member is the primary key value required for the query. fib_flags supports two lookup flags: FIB_LOOKUP ...

Author: deathmoodTranslator: front end XiaozhiSource: mediumThere are dreams and dry goods. Wechat search [Daqian world] pays attention to this bowl washing wisdom who is still washing dishes in the early morning.This article GitHub https://github.com/qq449245884/xiaozhi It has been included. There are complete test sites, materials and my ser ...

In the last article article In, we introduced how to package shared libraries with binary files to solve the problem of GLIBC incompatibility in clickhouse runtime. However, through our practice, we find that this scheme actually has side effects, which are fatal in the production environment and will cause the clickhouse process crash. Therefo ...

1, BackgroundWriting qualified unit tests can be said to be the basic skill of Java programmers. Many companies have requirements for single test coverage, usually ranging from 60% to 90%.However, many students have more or less conflicts with unit testing, and have questions about how to write "standard" unit testing code.Some studen ...

1. Basic grammar [condition] (note that there should be spaces before and after the condition) Note: if the condition is not empty, it is true, [666] returns true and [] returns false. 2. Common judgment conditions (1) Comparison between two integers = string comparison -lt less than -le less than or equal -eq equals (equal) -gt greater than ...

      Since the development of computer algorithms, there have been many different classifications. At present, the most widely used is the generalized swarm intelligent optimization algorithm. For example, particle swarm optimization (PSO), whale optimization (WOA), gray wolf optimization (GWO), dragonfly optimization (DA), uni ...

Based on the source code of Android 5.0, analyze the Start process of Activity. 1. startActivity() method of activity class There are two methods for startActivity(): The first method is to directly call the startActivity() method in the Activity. The code is MainActivity.this.startActivity(intent). This method will directly call the st ...