Product Class #11 | Remove If-Else Using Object Mapping | Reusable Upload System in JavaScript скачать в хорошем качестве

Product Class #11 | Remove If-Else Using Object Mapping | Reusable Upload System in JavaScript

📘 Product Class Number Product Class #11 – Replacing If-Else with Object Mapping for Upload Logic 🚀 Introduction Welcome back to the Print Khata WebApp Series. So far, we have built Profile, Add Client, and Add Goods modules. But our upload logic was repeatedly using multiple if-else conditions for B Logo, C Logo, and Material Upload. In this class, we refactor the entire upload system using Object Mapping and Configuration-based logic to make our code cleaner, scalable, and reusable. Now, instead of rewriting conditions for every new upload button, we simply update configuration objects. 📌 What You’ll Learn in This Video Why repeated if-else conditions are bad practice Creating an uploadButtonMap object Mapping Input IDs to Upload Button IDs Creating reusable upload logic Using e.target to dynamically detect clicked elements Accessing element IDs using .id Writing early return conditions Dynamically enabling and disabling buttons Checking files.length before upload Creating an uploadConfig object Passing Folder ID dynamically Passing File Input ID dynamically Fetching configuration using object key lookup Safely handling missing configuration Using document.getElementById() dynamically Handling file validation before upload Disabling button during upload process Passing folder ID from config object Removing unnecessary repetitive conditions Making upload system future-ready 🧠 Concepts Covered Code Refactoring Object Mapping Pattern Configuration-Based Architecture DOM Event Handling Event Targeting (e.target) Dynamic ID Handling Guard Clauses (Early Return) File Input Validation Clean Code Practices Scalable JavaScript Structure Reusable Function Design Reducing Code Duplication 💡 Tech Stack Used HTML • CSS • JavaScript • Google Apps Script • Google Drive 🎥 Previous Video 👉 Product Class #10 – Goods Module & HSN SAC Setup 👉    • Product Class #10 | Goods Module & HSN SAC...   ⏭ Upcoming Videos New Module Development Invoice Module Structure Dynamic Goods Dropdown Integration Auto Rate Fetch Logic Quantity × Rate Calculation GST & Tax Calculation Logic Full Invoice Generator System 🎯 Use Cases Scalable File Upload System Multi-Module SaaS Web Application Invoice Software Development CRM Upload Handling Google Drive Integrated WebApp Clean Architecture Implementation 🎯 Who This Course Is For Developers building real-world WebApps Students learning scalable JavaScript architecture Freelancers building CRM or Invoice tools Business owners automating internal systems Anyone wanting to reduce repetitive code in projects 💡 Why This Course Matters Most beginners rely heavily on repetitive if-else logic. In real-world applications, scalable architecture matters more than quick fixes. This class teaches you how to: Make your code reusable Remove duplication Design configuration-driven systems Build production-ready JavaScript applications This is the shift from writing code to writing clean software. 📚 Product Modules Preview 1️⃣ Business Profile Module 2️⃣ Client Management Module 3️⃣ Goods / Materials Module 4️⃣ Reusable Upload System 5️⃣ Google Drive Integration 6️⃣ Google Sheets Database 7️⃣ Invoice Generator 8️⃣ GST Calculation System 9️⃣ Dashboard & Reports ✅ SEO Keywords remove if else javascript object mapping javascript tutorial reusable upload function javascript dynamic button handling javascript file upload google apps script clean code javascript tutorial refactor javascript code example scalable web app architecture invoice web app development course ✅ YouTube Tags object mapping javascript, remove if else javascript, clean code tutorial, javascript refactoring, google apps script project, file upload system tutorial, web app development series, crm project tutorial, invoice web app development, javascript scalable architecture ✅ Hashtags #ProductClass #JavaScript #CleanCode #WebAppDevelopment #GoogleAppsScript #Refactoring #CRMProject #SaaSDevelopment #InvoiceProject