DevTales

MongoDB is a general purpose, distributed database built for modern application developers and for the cloud era. It is an open-source database and one of the most popular NoSQL database. MongoDB is easy to scale. It is a document database, which means it stores data in JSON-like documents. It supports... [Read More]

Jupyter notebooks are an interactive medium for doing data analysis. It is very popular amongst data science community. For a beginner it may be very simple and easy way to start but it has a lot more to offer. In this blog, we’ll discuss a very powerful interactive computing environment... [Read More]

Many times we face problem of imbalanced classes in the dataset where some classes have majority of observations and rest have only a few observations. Class imbalance can be found in disease diagnosis like Cancer detection, fraud detection or spam filtering. In this article, we’ll see few techniques which can... [Read More]

We all must have heard about Selenium/Web Driver for automation testing. Selenium is focused on cross browser automation. In this article we’ll discuss about another library for automation. Puppeteer is mainly focused on testing for Chromium. It’s a very useful tool for automation, testing and scraping web pages. Puppeteer is... [Read More]

Markdown is a markup language which has a plain text formatting syntax. John Gruber developed the Markdown language in 2004 in collaboration with Aaron Swartz on the syntax, with the aim of enabling people to write using an easy-to-read and easy-to-write plain text format, optionally convert it to structurally valid... [Read More]