Codalien Technologies

  Rеal-timе applications havе transformеd usеr еxpеriеncеs, offеring instantanеous updatеs and intеractions. Lеvеraging thе powеr of Nodе.js dеvеlopmеnt, dеvеlopеrs can build robust and scalablе rеal-timе applications that providе sеamlеss еxpеriеncеs to usеrs. In this blog, we’ll dеlvе into thе world of Nodе.js rеal-timе fеaturеs, specifically еxploring WеbSockеts with Nodе.js and sеrvеr-sidе еvеnts to crеatе livе and rеsponsivе applications. Undеrstanding Rеal-Timе Applications Rеal-timе applications rеdеfinе usеr еxpеriеncеs by providing instant updatеs and intеractions. Thеy еncompass a widе array of applications, from collaborativе tools likе Googlе Docs to livе sports updatеs and instant mеssaging platforms. Advantagеs of Nodе.js for Rеal-Timе Applications Nodе.js, with its asynchronous naturе and еvеnt-drivеn architеcturе, stands out for building rеal-timе applications. Its ability to handle multiple connеctions without blocking others makes it ideal for dеvеloping livе and...

  Ever realized the need to access data from a website but found it difficult to access it in a structured format? Well, Web Scraping is used to solve these types of issues. It is a technique of extracting data from any public website and using that data by storing it locally or showing it in the form of live data in our application. In this process, we are sending a crawler that automatically crawls all the data from the provided website. Node js provides many such libraries for web scraping such as Axios for fetching API responses, or Nightmare or Puppeteer for advanced scraping such as automation or skip captchas, etc. In this blog, we will be discussing how to use Puppeteer in data scraping from the web which is a free web scraping tool.  NOTE: Kindly make sure you’re doing web scraping on websites that allow it without disturbing any company norms or privacy measures. What is Puppeteer & Why It is Used? How To Use Puppeteer For Web Scraping? ( async () => { con...

  Binary Search is a fundamental algorithm in computer science, revered for its efficiency and wide range of applications. It is a divide-and-conquer search algorithm that allows us to find a specific element within a sorted array or list. In this article, we will explore the function and benefits of Binary Search , while also delving into the time and space complexity analysis. For instance- You’re given a task with two objects- a special egg that’s not easily breakable and a 100-story building, and your goal is to find the floor from which you can safely drop the egg with the least amount of time, here’s and optimize approach: Start by going to the 50th floor of the building and drop the egg from there. If it breaks, you’ve narrowed down the range, and you can then go to the 25th floor and repeat the process. If the egg doesn’t break when dropped from the 50th floor, proceed to the 75th floor and drop it from there, and so on. This method allows you to efficiently reduce the numb...

  For many web applications that let users share papers, photos, and other types of material, file uploads are a necessary functionality. Multer is a well-liked middleware used for Handling file uploads in Node.js using Multer middleware.in the Node.js environment to effectively handle file uploads. We’ll look at how to use Multer to create file uploads in Node.js in this in-depth tutorial, which covers everything like Multer typescript, Multer javascript from set up to save the configuration, and how to use Multer in node js, Multer GitHub and Step-by-step guide for file uploads with Multer in Node.js and how to implement file uploads in node.js using Multer?  What is Multer? Multer is a well-liked file upload middleware that manages multipart/form-data. It offers an easy-to-use API that simplifies the process of handling file uploads in Node.js and facilitates the integration of file upload functionality into web applications. Installation of  Node.js and npm Before us...

  In this blog, we are going to understand Big Data and how it is going to revolutionize the healthcare industry. So, first, let’s know what big data is. So, big data is the large volume of data that is coming from businesses, organizations, and people at a very high speed. Big data contains a variety of data like text, images, videos, audio, etc. We differentiate data broadly into three types: Structured Data, Unstructured Data, and Semi-Structured Data. However, when are talking about big data we mostly deal with unstructured data and semi-structured data. Structured Data, Semi-Structured Data, and Unstructured Data: Now let’s understand the three types of data formats. Structured Data:  Structured data is the data that is fully organized and which sort of follows the predefined schema. This kind of data is stored and processed through traditional databases and tools.  example : Relational Databases, In relational databases,  data is stored in table-like format whe...