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1. Introduction — LWC bundle An LWC bundle is a collection of files that together define a single Lightning Web Component. Typical files include an HTML template, a JavaScript controller, a metadata XML file, and optional assets (CSS, SVGs, tests). 2. HTML File Every LWC must include an HTML file with a root <template> tag. This tag contains the component's markup and bindings. <template> <h1>Hello, World!</h1> <p>Welcome to my Salesforce application.</p> </template> 3. JavaScript File The JavaScript file defines component behavior: properties, event handlers, getters, and lifecycle hooks. import { LightningElement } from 'lwc'; export default class GreetingComponent extends LightningElement { name = ''; handleInputChange(eve...

LWC Configuration — Step-by-step LWC Configuration A concise guide to set up your local environment for Lightning Web Components development. 1. Download and install VS Code Visual Studio Code is a lightweight but powerful code editor with excellent extension support for Salesforce development. Download the installer for your OS from the official site, run the installer, and follow the prompts. After installation you can open your project folder and use the integrated terminal for CLI commands. Official download: https://code.visualstudio.com/ 2. Install Salesforce CLI Salesforce CLI (sfdx) is the command-line tool that enables creating projects, authenticating to orgs, pushing and pulling source, running tests, and so on. Download the appropriate in...

Key Differences between Aura and LWC Technology Basis: LWC is built on modern web standards like native JavaScript, HTML, and CSS. Aura uses a proprietary Salesforce framework and does not fully leverage web standards. Performance: LWC is more lightweight and faster because it uses browser-native APIs, resulting in better performance. Aura can be slower since it requires more processing and abstraction. Development Complexity: LWC is easier to learn and develop with because it uses standard JavaScript and web technologies. Aura has a steeper learning curve with its own component model and syntax. Component Composition: LWC allows for better modularity and encapsulation with the Shadow DOM, leading to more reusable and isolated components. Aura components can interfere with each other, as there is no native encapsulation like Shadow DOM. ...

What is Lightning Web Components (LWC) ? Introduction: Salesforce introduced Lightning Web Components(LWC) as What is Lightning Web Components (LWC) ? Introduction: Salesforce introduced Lightning Web Components(LWC) as a modern framework for building dynamic, reusable UI Components on its platform.it replaces the older Aura framework and offers amore efficient and streamlined way to create web applications within the Salesforce ecosystem. Built using standard web technologies like HTML, JavaScript,and CSS, LWC takes Advantage of advancements in browser engines and web standards, providing Salesforce developers with a familiar, fast and lightweight framework. Why LWC was Created: Before LWC, Salesforce developers primarily used Aura Components, which, are powerful, but required proprietary syntax and relied heavily on Salesforce's Framework abstractions As web standards matured, the need for a more streamlined and modern approach to ...

There are 5 loop Types in Apex But not all of them are used Using while loops is considered a bad practice, because...it's easy to mess up From remaining 3 - for each is used 90% of the time But standard for loop is fundamental If you understand the standard loop, you understand all other types So, let's do it Definition: Loop is a block of code that runs a certain number of times Let's look at the example Let's say, I want to output 5 times (or 500) "Wow, I love Apex" to logs, but I am too lazy to write each line

🚀 Asynchronous Apex in Salesforce Asynchronous Apex is used for long-running, resource-intensive, or bulk operations that can't run within the standard synchronous limits. Salesforce provides several async mechanisms to meet different needs. --- 📌 Why Use Async Apex? ✅ Handle large volumes of data ✅ Avoid governor limits ✅ Perform non-blocking tasks (e.g., callouts) ✅ Execute scheduled tasks --- 1️⃣ Batch Apex Used to process millions of records in manageable chunks asynchronously. Key Methods: start() – Returns a query locator or iterable execute() – Processes each batch finish() – Final logic (e.g., email notifications) Example: Batch Apex global class AccountBatch implements Database.Batchable<sObject> { global Database.QueryLocator start(Database.BatchableContext bc) { return Database.getQueryLocator('SELECT Id, Name FROM Account'); } global void execute(Database.BatchableContext bc, List<...

⚙️ Writing Triggers in Apex Triggers are essential for automating logic in Salesforce. They run before or after DML operations on records and allow you to enforce business rules at the database level. --- 🕐 Before vs After Triggers Before Triggers : Used to modify record values before saving to the database. After Triggers : Used when you need the record's ID or want to perform operations on related records. Trigger Type Use Case before insert Set default values before saving after insert Log creation, send notifications before update Validate or modify updates after update Act on changes with old/new values before delete Prevent deletion with custom checks after delete Clean up related records after undelete Re-link relationships after restore --- 🎯 Trigger E...