Ionic3 learning notes (16) upload the picture to the picture bed

This is an original article. Please indicate Source The open source Demo login and registration module made by individuals adopts Wilddog communication cloud We have to say that all aspects of the identity authentication service are very similar to the Firebase purchased by Google, which is very simple and easy to use. Among them, the User has ...

Added by BigBadKev on Thu, 02 Apr 2020 04:42:33 +0300

Serialization Protocol In Action

This article introduces simple practices for several common serialization protocols ProtoBuf ProtoBuf is open source with Google and can be compiled across languages.It can be called an IDL, Interface description language. Download the compiler, protoc protoc-3.11.4-osx-x86_64.zip; download versions of different operating systems. https://gi ...

Added by neal.pressley on Wed, 25 Mar 2020 05:03:03 +0200

guava learning: observer mode

The observer pattern is a common behavioral design pattern.In the native implementation of Java, the Observer interface is implemented by the observer, and the Observable is inherited by the observer. Write a simple implementation using the Java api below. Observer code: public class MyObserver im ...

Added by manitoon on Tue, 17 Mar 2020 04:11:21 +0200

Second round of JetBrains: another three months for free family barrels

Shared yesterday How to obtain the exchange code of authentic family buckets by participating in the decryption task of JetBrains . JetBrains continued its second mission on Twitter this morning: Now, let's continue to participate in this together, and live for our authentic JetBrains family! Clue 1 ...

Added by surfinglight on Sat, 14 Mar 2020 05:06:32 +0200

Use guide of tcpdump

Original link: Tcpdump sample tutorial The main content of this paper is translated from <Tcpdump Examples>. Tcpdump is a powerful network packet capturing tool. It uses libpcap library to grab network packets, which is found in almost all Linux/Unix. Familiar with the use of tcpdump can help you to analyze and debug network data. Th ...

Added by nigel_belanger on Mon, 09 Mar 2020 09:11:48 +0200

[Data Structure and Algorithms] Hash Table

A Hash table is a data structure that is directly accessed based on a key value. That is, it accesses records by mapping key code values to a location in the table to speed up the search.This mapping function is called a hash function, and the array of records is called a hash list. In the following ...

Added by spamyboy on Mon, 02 Mar 2020 04:16:55 +0200

Cartographer installation and simulation test

Installation and configuration of cartographer Reference Official Handbook of cartographer According to the official Manual of cartographer, the installation of cartographer cannot be completed, mainly because the ceres library cannot be downloaded (the reason is very simple.. We all know that some fa ...

Added by neoboffins on Fri, 28 Feb 2020 13:01:30 +0200

Let's teach you how to use ProtoBuf to make network requests on Android through gRPC service

ProtoBuf-gRPC-Android Teach you how to use ProtoBuf to make network requests on android through gRPC service. If you are interested, please click Project address See it! brief introduction ProtoBuf >Google published a set of open source coding rules, based on the binary stream serialization transmission, which can be converted into a variety ...

Added by Zeradin on Tue, 25 Feb 2020 15:06:29 +0200

< markdown > Introduction to markdown

(1) What is Markdown Markdown is a lightweight markup language, which allows people to write documents in a plain text format that is easy to read and write. With the help of markdown, people can quickly typeset and transform them into rich HTML pages. At present, it is used by more and more writers a ...

Added by worldofcarp on Mon, 24 Feb 2020 06:22:01 +0200

Developing the correct posture of function calculation -- using brotli to compress large files

Big file problem Function calculation The size of the uploaded zip code package is limited to 50M. This limit can be exceeded in some scenarios, such as Uncut serverless-chrome , similar to libreoffice, in addition to the common machine learning training model file.At present, there are three ways to solve the problem of large documents Adopt ...

Added by stb74 on Fri, 21 Feb 2020 09:43:32 +0200