Programmer Think

brief introduction What is Fabric.js? Fabric.js is a library that can simplify Canvas programming. Fabric.js provides Canvas with the missing object model, svg parser, interaction and a set of other indispensable tools. Because Fabric. JS is a foreign framework, the official API is messy and numerous, most of the relevant documents are English ...

Original text: https://www.cnblogs.com/ghostwu/p/7521097.html Before that, I have shared the communication mechanism between components and between parent and child components, and our vuex is to solve the problem of component communication. What is vuex? The essence of component communication is to transfer data or componen ...

Telegram offers a wealth of API Let's develop a bot robot very conveniently. At the same time, Community The underlying API has also been encapsulated in various languages, so this paper uses node-telegram-bot-api To implement bot quickly Note: Due to the domestic network, Telegram bot needs to open the ladder and choose the global agent mode!! ...

Video tutorial Since you can't insert the video, please move on. https://www.henrongyi.top What is VUE? VUE is a progressive framework for building user interfaces. VUE is not really a mvvm framework, but rather a data-driven framework. So before we learn VUE, whether you are a traditional JS developer or a back-end developer, we need to transf ...

Reprinted address Introduction to New Functions of npm profile The new version of npm has a new function, npm profile, which can change your profile information. You can modify your profile without going to the website later. Specific support for this function is probably in version 6. If your npm version does not have this command, it is r ...

Why do we build this? It is very expensive to store a large amount of data on the block chain of Taifang. According to the Yellow Paper of ETF, it is about 20,000 gas, 256 bit/8 bytes (1 word). Based on 02/28/2018 gas price is 4 gwei/gas. Please refer to: https://ethgasstation.info Know the current price. Each transaction has 8 bytes of 20,000 ...

NPM What's this npm is to Node.js, just as pip is to Python, gem is to Ruby, and pear is to PHP.npm is the official package management tool provided by Node.js. It has become the standard platform for Node.js package publishing, dissemination and dependency control. npm provides command-line tools to make it easy to download, install, upgrade, ...