rahulmalhotra

{"author":"Rahul Malhotra","apps":[{"id":"1","title":"HTTPCalloutFramework","url":"https://github.com/rahulmalhotra/HTTPCalloutFramework"},{"id":"2","title":"SFDX Deploy Tool","url":"https://github.com/rahulmalhotra/SFDX-Deploy-Tool"},{"id":"3","title":"Platform Event Toast - LWC","url":"https://github.com/rahulmalhotra/Platform-Event-Toast-LWC"}]}

rahulmalhotra

{"author":"Rahul Malhotra","sessions":[{"id":"1","title":"Develop Lightning Components faster using Lightning Data Service","url":"https://www.sfdcstop.com/2017/12/develop-lightning-components-faster.html"},{"id":"2","title":"Agentforce for Developers","url":"https://trailblazercommunitygroups.com/events/details/salesforce-salesforce-developer-group-new-delhi-india-presents-delhincrohana-deep-dive-into-einstein-for-developers-amp-einstein-copilot/"}]}

rahulmalhotra

{"author":"Rahul Malhotra","blogs":[{"id":"1","title":"Building Blocks of Apex: Variables & Data Types Explained Simply - Salesforce Apex Tutorial Part 2 to 7 | Code Snippet","url":"https://www.sfdcstop.com/2024/04/variables-and-data-types-salesforce.html"},{"id":"2","title":"Collections in Apex - Salesforce Apex Tutorial Part 8 to 13 | Code Snippet","url":"https://www.sfdcstop.com/2024/08/collections-in-apex-salesforce-apex.html"},{"id":"3","title":"Apex Constants and Enums - Salesforce Apex Tutorial Part 14 to 16 | Code Snippet","url":"https://www.sfdcstop.com/2024/09/apex-constants-and-enums-salesforce.html"},{"id":"4","title":"Expressions and Operators in Apex - Salesforce Apex Tutorial Part 17 to Part 24","url":"https://www.sfdcstop.com/2024/10/expressions-and-operators-in-apex.html"},{"id":"5","title":"Control Flow Statements in Apex | if else | switch case | loops - Salesforce Apex Tutorial Part 25 and Above","url":"https://www.sfdcstop.com/2024/12/control-flow-statements-in-apex-if-else.html"}]}

rahulmalhotra

-> 'Create a Batch Class to opt out contact records from email, call and fax whose Unsubscribe Date has passed'

20,000 records -> total
200 records

How many batches?

-> 20,000 / 200 -> 100 batches in total

rahulmalhotra

/*
*	Author:- Rahul Malhotra
*	Description:- This batch class is used to update all contacts who have opted out of email, call and fax
*	Created:- 18-12-2021
*	Last Updated:- 18-12-2021
*/
public class UpdateContactsBatch implements Database.Batchable<sObject> {

    // * Return a maximum of 50 million records
    public Database.QueryLocator start(Database.BatchableContext batchableContext) {

rahulmalhotra

let inputs = document.getElementsByTagName('input');
for(let input of inputs) {
    if(input.type === 'checkbox' && input.name === 'enable') {
        input.disabled = false;
        break;
    }
}

rahulmalhotra

-----------------------------------------------------------------------------------------
-> Sort a list of sObject records based on field value
-----------------------------------------------------------------------------------------

List<Account> accounts = new List<Account>();
accounts.add(new Account(
    Name = 'Hooli',
    NumberOfEmployees = 50,
    AnnualRevenue = 10000
));

rahulmalhotra

-------------
Enums in Apex
--------------

An enum is an abstract data type whose values consist of a finite set of identifiers.
Enums are typically used to define a set of possible values that don’t otherwise have a numerical order.

public enum Color { RED, BLUE, GREEN, ORANGE, PURPLE }

values()

rahulmalhotra

---------------------------------------------------------------------------------------------------------------------------
Custom Comparator
---------------------------------------------------------------------------------------------------------------------------

List<Integer> numbers = new List<Integer>{ 5, 3, 2, 1, 4 };
System.debug('Initial list of Integers => ' + numbers);

System.debug('Sorting Integers....');
numbers.sort();

rahulmalhotra

// * Link accounts with parent accounts

Update 10,000 accounts
-----------------------

// * Brute Force Approach - Very time consuming

List<Account> accounts = [SELECT Reference_ID__c, Parent_Reference_ID__c FROM Account];
List<Account> accountsToUpdate = new List<Account>();