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Salesforce Lightning Web Components Overview

What are Lightning Web Components(LWC)? Lightning web components are custom HTML elements built using HTML and modern JavaScript.  Now you can build Lightning components using two programming models: Lightning Web Components, and the original model, Aura Components.   Why we need to go for LWC? 1. It uses Core Web Components standards 2. Most of the code you write is standard JavaScript and HTML 3. Provides only what’s necessary to perform 4. It is built on code that runs natively in browsers 5. It is lightweight and delivers exceptional performance   Where can we implement LWC Components? Salesforce Developer Console won’t support LWC components. We need to install Visual Studio Code(VS Code) Editor to implement the LWC Components. LWC Component Bundle Structure: LWC Majorly contains 3 files HTML JavaScript Meta XML Naming Convention/Rules for Components Bundles 1.Component name Must begin with a lowercase letter 2.Name ...
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Salesforce Lightning Data Service

In this blog, Today we can learn about the Lightning Data Service. What  is Lightning Data Service? Why  to use Lightning Data Service? When  to use Lightning Data Service? Which  Lightning Data Service to use? What is Lightning Data Service? Lightning Data Service is centralized data caching framework, which is use to load, create, update and delete the data in Salesforce without Salesforce Server side Apex Code. Why to use Lightning Data Service? Below are the few reasons of using Lightning Data Service in Lightning Web Component: No need of additional apex code to get data by making additional server side call. Lightning Data Service supports Sharing Rule and Field Level Security. Because of not writing additional Apex Class code, it will improve component's performance. It cache the result locally on Client Side. It supports all standard and custom Objects of Salesforce. When to use Lightning Data Service? Below are the scenarios when we can use Lightni...
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Disable Document Download in Salesforce

Disable downloads for certain users based on the name of the file uploaded to Salesforce. We can use the following example code inside of a Apex class. This code essentially prevents files whose file name starts off with Kaipu- from being downloaded by anyone whose user role’s developer name is not Kaipu_Sales. Modify this code to suit your own purpose. Based on Role: public class ContentDownloadHandlerFactoryImpl implements Sfc.ContentDownloadHandlerFactory {    public Sfc.ContentDownloadHandler getContentDownloadHandler(List<ID> ids, Sfc.ContentDownloadContext context) {      // See if the user has the Kaipu Sales role (based on developer name field).      Boolean isSecretUser = [        SELECT Id        FROM UserRole        WHERE ID = :UserInfo.getUserRoleId()          AND DeveloperName = ' Kaip...
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