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Safe Navigation Operator Instead of using explicit, sequential checks for null references, use the safe navigation operator (?.). This new operator short-circuits expressions that attempt to operate on a null value and returns null instead of throwing a NullPointerException. NOTE: All Apex types are implicitly nullable and can hold a null value returned from the operator. Example - Account acc = [SELECT Name FROM Account WHERE Id = :accId]; if (acc != null) {     return acc.Name; } Using Safe Navigation Operator String accName = acc?.acc.Name; String accName =  [SELECT Name FROM Account WHERE Id = :accId]?.Name; The Safe Navigation Operator (?.) in Apex is a feature that allows developers to safely navigate objects and data structures, avoiding null pointer exceptions. When you use the Safe Navigation Operator to access a chain of references, Apex will evaluate the expression from left to right and return null immediately if it encounters a null reference rather tha...

To determine if a Salesforce organization is a sandbox or a production environment in Apex. Salesforce's sObject Organization has a field called IsSandbox, which is true for sandboxes and false for Production. Boolean isSandbox = UserInfo.getIsSandbox(); Organization org = [Select Id, Name, IsSandbox from Organization]; if (org.isSandbox) {     System.debug('The organization is a sandbox.'); } else {     System.debug('The organization is a production environment.'); } You can use this check to conditionally execute logic based on whether the Apex code is running in a sandbox or production environment. This can be useful for implementing different behaviors or configurations specific to each environment. In Salesforce, the Organization object represents metadata and settings for a Salesforce organization. It provides information about the organization's configuration, such as its name, address, edition, features, limits, and more. The Organization object is rep...