Problem description & analysis:
In the Excel table below, column A is the grouping field and column B contains detail data.
We want to get a row from each group randomly.
Solution:
Use SPL XLL to do this:
As shown in the picture below:
Explanation:
E()function parses the range as a table. sort(rand()) arranges rows randomly. group@1 groups rows and gets the 1st record from each group.
Converting Excel data into a Gantt chart is a task that attracts the attention of many project management professionals. While being a versatile tool for organizing data, Excel lacks the visual clarity and scheduling power offered by a Gantt diagram. This conversion enables users to see their project timelines in a way that enhances understanding…
1. What is Node.js? Answer: Node.js is a runtime environment built on Chrome’s V8 JavaScript engine that allows developers to run JavaScript code on the server side. It’s designed for building scalable network applications and supports non-blocking, event-driven architecture. 2. What is the difference between Node.js and JavaScript? Answer: JavaScript is a programming language that…
Tried this but not a right solution /** * @param {number[]} nums * @return {boolean} */ var increasingTriplet = function(nums) { for(let i = 0 ; i<nums.length–2;i++){ let a = i; let b = i+1; let c = i+2 if(nums[i]<nums[i+1] && nums[i+1]<nums[i+2]){ return true } } return false }; Some cases will fail with the…
Background The Non-Fungible Token (NFT) market has experienced remarkable growth in recent years, redefining digital assets and transforming them into highly sought-after collectibles. This surge has not only highlighted the potential for new forms of digital ownership but has also exposed a significant challenge: the lack of standardization across different platforms and marketplaces. During this…
Understand the differences between opaque tokens and JWTs, their use cases, and how they are validated in OIDC-based systems. In Logto, as an OIDC-based comprehensive CIAM platform, authorization tokens play a crucial role in securing user interactions and managing access to resources. Among the various types of tokens used for authorization, opaque tokens and JWTs…
Zeromagic is now live, transforming the way APIs are built and managed for modern applications! 🎉 What is Zeromagic? Zeromagic is an AI-powered, low-code platform that empowers developers to create RESTful and GraphQL APIs in a fraction of the time. With our advanced AI capabilities, you can generate APIs, data models, and more, allowing you…
The following content is my own note from the book, “Designing Data-Intensive Applications”. The writing is intended for people who want to dash through the book quickly. There’re different ways to store data (store engines) for transactional workloads and analytics. They’re called OLTP (optimized for transaction processing) and OLAP (optimized for analytics). OLTP is user-facing,…
In the world of software development, APIs and SDKs are two of the most common terms you’ll encounter. Both are essential tools that help developers build, enhance, and integrate applications more efficiently, but they serve distinct purposes. APIs (Application Programming Interfaces) allow different software systems to communicate with one another, enabling developers to add features…
Hi, I want build an SDk where I have put all the required changes and try to sync the build file but I am getting the below issue Starting Gradle Daemon… Gradle Daemon started in 1 s 741 ms FAILURE: Build completed with 2 failures. 1: Task failed with an exception. Where: Build file ‘/Users/fci-ma2076/Documents/projects/T/Test/build.gradle.kts’…
This is a submission for Frontend Challenge v24.09.04, Glam Up My Markup: Space What I Built Explore the Solar System: Discovering the Planets It is an website that allows users to explore planets, learn about their unique features, and embark on a virtual journey through our solar system. Demo Demo Link – https://rayx81194.github.io/space/ Github Link…
Problem description & analysis: We have two Excel sheets, and there are same-structure tables in the two sheets. Sheet1 Sheet2 Task: Search every cell of each table and match their values with a specified string, such as foo. If the matching succeeds, list the whole current row. Solution: Enter the following formula in SPL XLL:…
Domain Name System Laziness led to Domain = D here. It’s not just 1 system that caches all the millions of sites, something deeper. It consists of 3 servers: So, the Auth servers (3rd) store the Ds with their IP addresses. The text instructions to determine the IP address for a specific D are DNS…
React.js, developed and maintained by Facebook, has become one of the most popular JavaScript libraries for building user interfaces, particularly single-page applications (SPAs). Known for its flexibility, efficiency, and ease of use, React has a large community and a wealth of resources for developers at all levels. Whether you’re a beginner or an experienced developer…
👋¡Estamos de vuelta! 👋 Después de algún otro tiempo desaparecidos y alguna que otra certificación en el bolsillo y algún que otro proyecto nuevo en mente. ¡Vamos a darle caña! 🚀 ¿Cuántas veces hemos discutido sobre si la infraestructura debería gestionarse por un lado y la aplicación por otro, si todo en el mismo sitio,…
No desenvolvimento de software, validar os objetos de entrada é essencial para garantir a integridade dos dados e detectar problemas desde as fases iniciais. Nesse cenário, o FluentValidator se destaca como uma biblioteca amplamente utilizada para realizar a validação de modelos de forma eficiente e estruturada. Neste exemplo, construiremos uma API em .NET 8 com a…
Mastering coding interviews is crucial for landing a job in tech. One of the best ways to prepare is by identifying and practicing common problem patterns that appear repeatedly on LeetCode. Understanding these patterns not only helps in solving specific problems but also builds a strong foundation for tackling new challenges. Here’s a breakdown of…
node:events:492 throw er; // Unhandled ‘error’ event ^ Error: EPERM: operation not permitted, lstat ‘D:BackupReactNativeCLIreactnativeguessgameandroidappbuildintermediatesdesugar_graphdebugoutcurrentProjectdirs_bucket_2graph.bin’ Emitted ‘error’ event on NodeWatcher instance at: at D:BackupReactNativeCLIreactnativeguessgamenode_modulesmetronode_modulesjest-haste-mapbuildwatchersNodeWatcher.js:275:14 at callback (D:BackupReactNativeCLIreactnativeguessgamenode_modulesgraceful-fspolyfills.js:306:20) at FSReqCallback.oncomplete (node:fs:199:21) { errno: -4048, code: ‘EPERM’, syscall: ‘lstat’, path: ‘D:BackupReactNativeCLIreactnativeguessgameandroidappbuildintermediatesdesugar_graphdebugoutcurrentProjectdirs_bucket_2graph.bin’ } Node.js v20.10.0 Please follow and like us:
Choosing the right 3D modeling application is crucial for design and engineering projects. With many options available, it can be tough to find the best fit for specific needs. Here’s a look at some top 3D modeling applications making a big impact in the field: SolidWorks is a popular choice for engineers and designers due…
As your tech stack expands, the influx of machine data, particularly in the form of distributed log data, becomes overwhelming. Machine data, growing 50 times faster than traditional business data, includes logs documenting events across systems, networks, and applications. The sheer volume and diversity of logs can be daunting. Having said that, log data holds…
Explica este código Python Dificultad: Intermedio a = [2, 5, 3, 4] a[2:2] = [2] print(a) A. [2, 5, 2, 3, 4] B. [2, 5, 2, 4] C. [2, 5, 3, 2, 4] D. Error Respuesta: 👉 A. [2, 5, 2, 3, 4] Cuando hacemos slicing de listas y el valor de inicio es igual…
There are some methods in array 1.push() 2.unshift() 3.pop() 4.shift() 5.splice() 6.slice() 7.indexOf() 8.includes() 9.forEach() 10.map() 11.filter() 12.find() 13.some() 14.every() 15.concat() 16.join() 17.sort() 18.reduce() 1 Push() method *Add new element at last position. syntax array.push(element1, element2, …, elementN) Example let fruits = [‘apple’, ‘banana’]; let newLength = fruits.push(‘orange’, ‘mango’); console.log(fruits); // Output: [‘apple’, ‘banana’, ‘orange’,…
Managing references in a MongoDB database has been challenging, especially when dealing with related documents and ensuring atomic updates. In this post, we’ll explore how I created a robust function that processes references in a document using Mongoose, handling both updates and inserts (upserts) efficiently. We’ll be using Mongoose’s bulkWrite operation to perform multiple updates…
Hello all, I’m experiencing an issue with my Vue application where query parameters are not appearing in the URL as expected when navigating to a new route. I’m using Vue 3 with Vue Router, and here are the details of my setup: Issue: When I submit a form to search for jobs, I expect the…
During a recent conversation with a friend, she opened up about her daily struggles with productivity. As she described her challenges, I realized with a profound sense of relief that I could relate to every single issue she faced. This shared experience underscored a comforting truth: I’m not alone in my struggles, and neither is…
To find the intersection of two singly linked lists in a simple and optimal way, you can use the following approach. The key idea is to align the ends of both linked lists by adjusting the start point of the longer list, and then traverse both lists simultaneously to find the intersection point. Steps: Calculate…
We will walk through the steps to adopt a custom login and registration user interface (UI) using AWS Amplify and AWS Cognito. AWS Amplify is a powerful tool that provides simplified framework for developing and running cloud-powered applications, while AWS Cognito provides secure authentication with user management. By the end of this guide, you will…
If you’ve ever set up your own website, you know how vulnerable it can be to attacks. Today, I’m introducing a simple, free, and effective tool to help protect your site—a Web Application Firewall (WAF) called SafeLine. What is a WAF? WAF stands for Web Application Firewall. Unlike traditional firewalls, WAF operates at the application…
Database backups in SQL Server are important as they help restore data in case of database corruption, virus attack, server issue, or any disaster. For example, if a virus damages the database, you can use the last created backup to restore the database. In this article, we will see how to restore SQL Server database…
In today’s digital world, mobile app push services have become a crucial bridge connecting users and applications. This article delves into how to integrate these services in Java, Python, and PHP, providing specific code examples to demonstrate their implementation. For more detailed information on mobile app push services, please visit this link. What Are the…
