Dev Tools - Birost

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Employment Information Statistics Network (interface document)

basic configuration Base address: 1. API authentication uses token authentication uniformly, and data returns uniformly uses json. The server opens cors to solve cross-domain problems. 2. Request method GET (SELECT): Retrieve resources (one or more items) from the server. POST (CREATE): Create a new resource on the server. PUT (UPDATE): Update the resource on the server (the client provides the complete resource after the change). DELETE (DELETE): Delete resources from the server. Interface fail

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Vnode virtual DOM of Vue

Why use virtual DOM (Virtual DOM) Manual DOM operation is more troublesome, and browser compatibility issues need to be considered. Although DOM operations such as JQuery are simplified, as the project becomes more complex, the complexity of DOM operations will also increase. In order to simplify the complex operation of the DOM, various MVVM frameworks have emerged. The MVVM framework solves the problem of synchronization of views and states In order to simplify the operation of the view, we ca

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This article takes you in-depth understanding of the IOC startup principle

1. IOC overview 1.1 What is it? Two concepts: inversion of control, dependency injection **Look at the traditional way of working: **Based on the single responsibility principle of an object, an object rarely completes its own work without relying on other objects, so at this time there will be dependencies between objects. And in our development, when we need any object, we will create what object, at this time the control of object creation is in our own hands. When too many objects are create

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Docker command university and examples of commonly used writing

The content comes from the official accountHelian Xiaowu, Please indicate the source for reprinting [TOC] Reference docker official website docker official document rookie tutorial As a lightweight, high-performance sandbox container, docker is used very frequently and has very powerful functions. Powerful functions need complicated commands to support, although there are many docker commands, I can't remember many. A good memory is not as good as a bad pen. This article summarizes the commands

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2.5 Trust and agreement

Original link In the previous section, we let Alice and Bob bet with tokens while playing rock, paper, scissors. However, the version of the application we wrote has a fundamental flaw: Bob can win every game! how can that be possible? Let's review the process of Alice's victory: $ ./reach run Alice played Rock Bob accepts the wager of 5. Bob played Scissors Alice saw outcome Alice wins Bob saw outcome Alice wins Alice went from 10 to 14.9999. Bob went from 10 to 4.9999. Copy code The problem is

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R language Gabor filtering for the extraction of target image texture features

Gabor features have been widely used in image analysis and processing (character and face recognition). Gabor (Nobel Prize winner, electrical engineer and physicist) used the following wording, which I think is worth mentioning in this vignette, "You can't predict the future, but you can invent it." In the following lines, I will describe the GaborFeatureExtract  R6 class, which includes the following methods, GaborFeatureExtractgabor_filter_bank()gabor_feature_extraction()gabor_feature_eng

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In the cloud-native era, ideas and best practices for constructing multi-active disaster recovery systems for enterprises

Description: For the interpretation of the concept of cloud native, we often hear micro-services, these containers, so in the end what kind of relationship these technologies now disaster recovery? In fact, the needs of disaster recovery exist in all walks of life. For example, the financial industry also has a strong demand for disaster recovery. But how to build disaster tolerance and survivability is actually something every company needs to think about. This sharing hopes to provide you with

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Parachain test is coming, Polkadot and Patract talk about slot auction

The Kusama Parachain auction of Polkadot's advance network is about to begin, and Polkadot's ecology will also usher in an outbreak. To this end, the vernacular blockchain has joined hands with many excellent Polkadot projects to gather the vernacular masters to say that there is an online AMA every day to discuss the story behind Polkadot and its future direction. Left: Guests Helena, Head of Business and Operations, Parity Asia Right: Guests Patract CMO Santry Huang Middle: Host | Vernacular B

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Python topic modeling visualization LDA and T-SNE interactive visualization

Original link: tecdat.cn/?p=6917 Original source: Tuoduan Data Tribe Official Account   I try to use Latent Dirichlet to allocate LDA to extract some topics. This tutorial features natural language processing flow, starting with raw data, preparing, modeling, and visualizing thesis. We will cover the following points Use LDA for topic modeling Use pyLDAvis to visualize topic models Use t-SNE to visualize LDA results In [1]: from scipy import sparse as sp duplicated code Populating the inter

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12 ( )

pay.weixin.qq.com/wiki/doc/ap 1. 2. API 3. code_url 4. code_url 5. 6. 7. 8. 9. 10. 11. API 12. 1. appid APP 2. mch_id ( partner) 3. partnerkey 4. sign: , , 1.  <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> </dependency>  <dependency> <groupId>com.github.wxpay</groupId> <artifactId>wxpay-sdk</artifactId> <version>0.0.3</version> &l

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Minimum spanning tree

This is the third day that I participated in the more text challenge. For details of the event, please check: more text challenge Problem introduction Unblocked project To transform the original roads between n cities into expressways, the original road network between these cities is shown on the right, and the number on each side represents the cost of expressway reconstruction (unit: 1 billion yuan) ). How to construct a highway network at the lowest cost so that any two cities are connected

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Kubernetes Pod Vertical Auto-Scaling (VPA)

This article has participated in the Haowen Convening Order Activity, click to view: Back-end, big front-end dual-track submissions, 20,000 yuan prize pool waiting for you to challenge 1 Introduction to VPA The full name of VPA is Vertical Pod Autoscaler, which means vertical Pod autoscaler. It automatically sets CPU and memory requests according to the resource usage of the container, thus allowing proper scheduling on the node to provide appropriate resources for each Pod. It can not only shri

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"JavaScript Advanced Programming" study notes | 8.3. Inheritance

Pay attention to the front-end Xiaogu , read more original technical articles inherit Object-oriented language supports two inheritance methods: interface inheritance and implementation inheritance JS functions have no signature (no need to declare variable types in advance), only support inheritance , relying on the prototype chain Related code Prototype chain The prototype of the subtype constructor is rewritten as an instance of the supertype constructor function SuperType () { this .propert

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Realizing js from scratch to develop Linux graphical interface program

Preface Recently, the company has received development needs at work, and the company wants to sell server hardware running in special scenarios (based onLinuxOperating system), front-end engineers need to cooperate with developmentLinuxThe graphical applications under the system are delivered together. The final application program is written by the hardware engineer by callingshellThe script directly obtains the current computing data and related parameters of the machine, and then renders the

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New features of JDK9 (1)

Java 8 was launched in March 2014, and the tortuous Java 9 was finally released on September 21, 2017. After more than 3 years in the middle, Java 9 provides more than 150 new features, including the highly anticipated modular system , Interactive REPL tools: jshell, JDK compilation tools, Java public API and private code, as well as security enhancements, expansion enhancements, performance management improvements, etc. It can be said that Java 9 is a huge system project that has completely cha

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9 strategies and 6 indicators for performance optimization

Preface Usually everyone thinksPerformance optimizationIt is a disordered application scenario, but in the author s opinion it is an orderly application scenario with manyPerformance optimizationThey are all paving the way for each other and even the Belt and Road Initiative. From the perspective of process trends,Performance optimizationIt can be divided into network level and rendering level ; from the result trend,Performance optimizationIt can be divided into time level and volume level . Si

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ByteDance s favorite 64 algorithm questions (JS version)

origin Nowadays, algorithm questions are almost compulsory in interviews with big factories, and LeetCode real questions have appeared frequently in recent years. This article is the author who has obtained Byte, Tencent, and Jingdong Offer personally brushed and encountered in the process of preparing for the interview. High-frequency algorithmic questions. The content of the article will be organized in modules, and the real questions encountered by the author during the interview will be high

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C++ Builder API functions

C++ Builder API functions 1. API network functions WNetAddConnection Creates a permanent connection to the same network resource WNetAddConnection2 Creates a connection to the same network resource WNetAddConnection3 Creates a connection to the same network resource WNetCancelConnection Ends a network connection WNetCancelConnection2 Ends a network connection WNetCloseEnum Ends an enumeration operation WNetConnectionDialog starts a standard dialog box Establish a connection with a network resour

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A Preliminary Study of Cobra in Golang Development

"This article has been summoned to participate in activities of a good text, click to see: the back-end, front-end dual-track large contributors, 20,000 yuan prize pool waiting for you to challenge! " A background At the moment when cloud native is in full swing, I believe that many people have heard about Kubernetes/etcd, etc. When we look at its source code or perform secondary development on it, we can find that they all use a command line library Cobra, which is An artifact used to write com

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Classic algorithm notes: anomaly detection and recommendation system

This article is the notes and code reproduction part (clustering, dimensionality reduction) of teacher Wu Enda's machine learning course [1]. Author: Huang Haiguang[2] Note: Notes, assignments (including data, original assignment files), and videos are all downloaded in github[3]. I will successively post the course notes and course codes on the public account "Machine Learning Beginners", so stay tuned. This is the fifth part: anomaly detection and recommendation system, the first nine weeks o

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