Blogathon-2021

400+ posts

Last Updated: 23 September 2021

Primary Key refers to the column of a table that uniquely identifies a row in a table. It contains unique values and can not contain NULL va ...read more

SQL

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Blogathon-2021

Python Flask - ImmutableMultiDict

Last Updated: 23 September 2021

MultiDict is a sub-class of Dictionary that can contain multiple values for the same key, unlike normal Dictionaries. It is used because som...read more

How to update the State of a component in ReactJS ?

Last Updated: 13 November 2023

To display the latest or updated information, and content on the UI after any User interaction or data fetch from the API, we have to update...read more

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Difference between isset() and empty() Functions

Last Updated: 23 September 2021

The empty() function is an inbuilt function in PHP that is used to check whether a variable is empty or not.These values are considered to b ...read more

Web Technologies - Difference Between

SQL Query to Update Columns Values With Column of Another Table

Last Updated: 23 September 2021

In SQL update belongs to DDL (Data definition language). Using the UPDATE command we can update the present data in the table using the nece...read more

How to Install Selenium WebDriver on MacOS?

Last Updated: 21 September 2021

In this article, we will learn how to install Selenium WebDriver in Python on macOS. Selenium WebDriver is a web framework that permits you ...read more

How to Install xlrd in Python in Windows?

Last Updated: 29 November 2022

The xlrd module in python is used to retrieve information from a spreadsheet. In this article, we will look into the process of installing t ...read more

How to convert LowerCase values to UpperCase in Input Field using ReactJS ?

Last Updated: 10 November 2023

In React, to convert the Lower case input values to uppercase we can use the Javascript methods like toUpperCase and toLocaleUppercase metho...read more

How to Build Web scraping bot in Python

Last Updated: 02 February 2022

In this article, we are going to see how to build a web scraping bot in Python.Web Scraping is a process of extracting data from websites. A...read more

Python web-scraping-exercises

Blogathon

Blogathon-2021

Python OpenCV - Find center of contour

Last Updated: 24 September 2021

Prerequisite: How to Detect Shapes in Images in Python using OpenCV?In this article, we will learn how to find centers of contours using Ope...read more

Python nonlocal Keyword

Last Updated: 14 December 2022

Python nonlocal keyword is used to reference a variable in the nearest scope.Python nonlocal Keyword ExampleIn this example, we demonstrate ...read more

Scraping Reddit using Python

Last Updated: 07 October 2021

In this article, we are going to see how to scrape Reddit using Python, here we will be using python's PRAW (Python Reddit API Wrapper) modu...read more

SQL Query to Exclude Multiple Values

Last Updated: 13 September 2021

To exclude multiple values to be fetched from a table we can use multiple OR statements but when we want to exclude a lot of values it becom...read more

Multi-Language support in React Native

Last Updated: 09 September 2021

Multi-Language support in React Native: Internationalization of React Native app helps us to target those users who either don't speak Engli...read more

Machine Independent Code optimization in Compiler Design

Last Updated: 16 September 2021

Machine Independent code optimization tries to make the intermediate code more efficient by transforming a section of code that doesn't invo...read more

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