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Form handling in React-js

Welcome readers, in this tutorial, we will understand form handling in a React-js application. 1. Introduction React is a flexible javascript library responsible for building reusable UI components. It is an open-source component-based frontend library responsible only for the view part of an application and works in a virtual document object model. But before that let us take a look ...

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Python Ternary Operator

Hello in this tutorial, we will understand the ternary operator in python programming. 1. Introduction The ternary operator is used in programming languages to return output based on a binary condition. It is similar to the if-else condition block just a little neat. In python, it is represented by the below syntax – Syntax value_if_true if condition else value_if_false 1.1 ...

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useReducer Hook in React-js

Welcome readers, in this tutorial, we will understand how to use the useReducer hook in a react-js application. 1. Introduction React is a flexible javascript library responsible for building reusable UI components. It is an open-source component-based frontend library responsible only for the view part of an application and works in a virtual document object model. But before that let ...

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Using React Context Hook

Welcome readers, in this tutorial, we will understand how to use the Context Hook in a React-js application. 1. Introduction React is a flexible javascript library responsible for building reusable UI components. It is an open-source component-based frontend library responsible only for the view part of an application and works in a virtual document object model. But before that let ...

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Discover Lightstreamer 7.3

We are proud to announce that Lightstreamer 7.3 has been publicly released. You can download it right now from https://www.lightstreamer.com/download/ The official Docker image and the Amazon EC2 AMI are available too. Lightstreamer 7.3 and the most recent client and adapter SDKs bring many improvements and fixes, mainly covering performance and features. Below are some highlights but you can check ...

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Building a Distributed Task Queue in Python

Why not just use Celery/RQ/Huey/TaskTiger? Unfortunately, WakaTime has been using Celery for almost 10 years now. During that time I’ve experienced many critical bugs, some still open years after being introduced. Celery used to be pretty good, but feature bloat made the project difficult to maintain. Also in my opinion, splitting the code into three separate GitHub repos made the ...

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Make e2e Testing Easier With the Right Tools

End-to-end (e2e further in the text) testing is immensely important since there are issues that can only be discovered while testing the system as a whole, testing it from one end to another. That also adds a greater level of complexity to e2e tests, making them longer, slower to execute, and with more points of potential failure, compared to lower-level ...

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OPEN APIS – PUBLIC INFRASTRUCTURE IN THE DIGITAL AGE

When “public infrastructure” is mentioned, typically people think of roads, bridges, rails, dams, power plants, city lights. These are all enablers, publicly funded/owned/managed (not necessarily all of these), which allow the larger public to do business and to cover basic needs. Public infrastructure is sometimes free, but not always (you pay electricity bills and toll fees; and of course someone ...

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Performing SUM based on Group in Tableau

Today while working on one of my assignments I got a requirement to perform a SUM of one column values based on a Group of columns in Tableau and being a novice to Tableau I started searching on the internet to find a way to achieve it and after spending few hours I found a solution so thought of sharing ...

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