Front-end Asynchronous Solution-3 (Promise)

I haven't written for a few days. I've been learning Promise and generator intermittently these days. Today I can finally solve the asynchronous problem by combining the two things. Today I would like to share with you the usage of promise and the handling of asynchrony.As usual, let's simulate a Promise first. //Cough, that's how it works. let ...

Posted by philip@hux.co.za on Sun, 12 May 2019 07:51:26 +0200

Using YANG-UTIL to bring classes into ODL can't load BUG

ODL is based on MDSL, whose model is defined in YAGN language, and the class generated by Yang-tool is used in programming. The data stored in ODL's DataStore needs to be serialized and deserialized. The serialized deserialized code is generated dynamically through Javassist. BindingToNormalizedNodecodec.java public <T ...

Posted by nominator on Sun, 12 May 2019 07:06:22 +0200

Java String

Java String We know that Java's character channeling is Immutable, once created, it can't change its content; Usually we operate on strings most, in fact, the returned strings are all new string objects, which have not been changed, which is exactly the same as C. Since strings are invariable, the efficiency of various operations on strings mus ...

Posted by shneoh on Sun, 12 May 2019 00:13:53 +0200

Analysis of Structured Exception Handling in Windows

Recently, I have been puzzled by a problem, that is, the program always crashes without reason. Some places know that there may be problems, but some places have no way to know what the problems are. Even more painful thing is that our program needs 7x24 service customers, although it does not need real-time precision zero error, but can not al ...

Posted by FrancoPaddy on Sat, 11 May 2019 22:56:48 +0200

Python list, meta-ancestor

Part of the content is compiled from Python, Little Turtle List: An array of hormones The concept of arrays is to put a large number of data of the same type together one by one, and then indexed by array subscripts. But the basic requirement of arrays is that the data you put together must be of the same type. Because Python ...

Posted by fishown on Sat, 11 May 2019 20:02:05 +0200

cesium offline service settings

1. data sources 1) Satellite image texture. sxearth and other software are used to download and store data in tms format from existing network map service providers.2) DEM data. The global data available for download are SRTM V4.1, AW3D30, TanDEM-X, etc. 2. DEM data preprocessing Cesium supports two formats of terrain: quantized-mesh data and ...

Posted by ayj on Sat, 11 May 2019 19:25:35 +0200

Tamping Java Foundation-Reflection

A week has passed since the nested Fragment s lazily loaded articles. To tell the truth, lately there has been a slight decrease in enthusiasm for learning, or a slight drift of myself, or a slight increase in temptation in reality, but this is a bad state and you have to adjust yourself to keep moving towards your goals. Preface This a ...

Posted by digitalgod on Sat, 11 May 2019 18:47:44 +0200

Talk about ZenPing of elasticsearch

order This paper mainly studies ZenPing of elasticsearch. ZenPing elasticsearch-7.0.0/server/src/main/java/org/elasticsearch/discovery/zen/ZenPing.java public interface ZenPing extends Releasable { void start(); void ping(Consumer<PingCollection> resultsConsumer, TimeValue timeout); class PingResponse implements Writeable { ...

Posted by sebmaurer on Sat, 11 May 2019 16:11:55 +0200

day11 [Network Programming](* Software Architecture CS/BS * Three Elements of Network Communication * TCP Communication * Socket Socket * ServerSocket)

day11 [Network Programming] primary coverage Software Architecture CS/BS Three Elements of Network Communication TCP communication Socket socket ServerSocket Teaching objectives Ability to distinguish UDP and TCP protocol features Can name two common class names under TCP protocol Can write string data transmissio ...

Posted by Deadmeat on Sat, 11 May 2019 14:23:04 +0200

Object-Oriented Inheritance and Derivation

1. inheritance 1.1 Concept of Inheritance Inheritance refers to the relationship between classes, what is the relationship between classes, and one of the functions of inheritance is to solve the problem of code reuse.Inheritance is a way to create new classes. In Python, a newly created class can inherit one or more parent classes, which can ...

Posted by Harsh on Sat, 11 May 2019 14:15:06 +0200