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on November 09, 2020

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Flask

Flask is a popular Python framework for developing web applications. Classified as a microframework, it comes with minimal built-in components and requirements, making it easy to get started and flexible to use. The developer has the liberty to choose which tools and libraries they want to utilize. Flask is capable of creating both static websites as well as more complex apps that involve database integration, accounts and authentication, and more. The Python module that contains all the classes and functions needed for building a Flask app is called flask . When creating a Flask object, we need to pass in the name of the application. We can do that with python's special variable __name__. In our Flask app. we can create endpoints to handle the various requests. Requests from different URLs can be directed to different endpoints in a process called routing . To build a route, we need to first define a function, known as a view function, that contains the code for processing the re...

Micro USB vs USB C

USB - Universal Serial Bus The data transfer speed is determined by the wiring setup within the connectors. USB 3.1 is the new USB standard. Micro USB Micro USB is a relatively old USB standard specified connector which appeared in 2007. It is designed to connect some mobile and compact devices like MP3 players, smartphones, and digital cameras. There are three forms of micro USB interface including micro A , micro B , and micro USB 3 . Micro USB 3.0 has a very similar look to the Type-B micro USB, but it has an extra pin group on the side used for twice the wires. Micro-USB connector is very small and it let manufacturers produce slimmer devices. They are cheaper than type C. USB C Also known as USB Type-C or even type C. It is a connector system designed with a 24-pin group introduced in 2014. The two-fold rotationally symmetrical design is the most distinctive feature. They can be used to transmit data but deliv...

React

React is the javascript library to create websites maintained by Facebook. Allows us to create Single Page Apps - SPA's. JSX = Javascript XML which is just a javascript object as a HTML element. To create a react app: npx create-react-app name . It is responsible for the View Layer of your application. It is only responsible for rendering your user interface as well as updating the UI. React's goal is to write maintainable and efficient code. It does not come with a design system. React is not part of the browser, so you must import it into the javascript file in which you will need it. With import React from "react'"; This is called a bare import because you are not importing from a file path. When you import react you get a react object that contains methods and properties. Every time you have an import in your code, pay attention that you are adding code to your application which is called Import Cost . React creates a virtual representation of your User Int...

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