Wilco Source Interview Questions, Process, and Tips for Experienced

Hooks in WordPress are actions and filters that allow developers to modify or add functionality to WordPress.

• Actions are hooks triggered at specific points in WordPress, such as when a post is published or a user logs in.

• Filters allow developers to modify data before it is displayed, such as changing the content of a post or the title of a page.

• Examples of hooks include 'wp_head', 'wp_footer', 'the_content', and 'the_t

Customizing a child theme involves modifying its CSS and PHP files to override the parent theme's styles and functionality.

• Create a new directory for the child theme in the wp-content/themes/ directory

• Create a style.css file in the child theme directory and add the necessary header information

• Enqueue the parent theme's stylesheet in the child theme's functions.php file

• Override parent theme's styles and functionality by...read more

To show many columns in a single page for mobile-friendly design in Lightning, use responsive design and consider using horizontal scrolling.

• Use responsive design to ensure the layout adjusts to different screen sizes

• Consider using horizontal scrolling to allow users to view more columns without taking up too much vertical space

• Prioritize the most important columns to display first

• Use filters or collapsible sections to...read more

Use batch Apex to handle bulk callouts over button click

• Implement the Database.Batchable interface to process records in batches

• Use the @future annotation to make asynchronous callouts

• Consider using a queueable Apex job to handle large volumes of data

• Use the Limits.getCallouts() method to monitor callout limits

• Handle any errors or exceptions that may occur during the callout process

Yes, an email message can be sent from a trigger even after logic gets into AddError method.

• Email messages are sent asynchronously and are not affected by the AddError method.

• The AddError method only prevents the record from being saved and rolls back any changes made in the transaction.

• To send an email from a trigger, use the Messaging.SingleEmailMessage class and the Messaging.sendEmail method.

Order of execution in Salesforce determines the sequence of events that occur when a record is saved.

• Triggers are executed first

• Validation rules are checked next

• Before triggers are executed

• Custom validation logic is checked

• Record is saved to the database

• After triggers are executed

• Assignment rules are executed

• Auto-response rules are executed

• Workflow rules are executed

• Escalation rules are executed

• Roll-up summary fields a...read more

Optimizing SOQL and DML in Apex transactions

• Use selective SOQL queries to limit the number of records retrieved

• Avoid using SOQL queries inside loops

• Use bulkified DML operations to process records in batches

• Minimize the number of DML statements by grouping similar operations

• Use @future or Queueable Apex for long-running operations

• Consider using Database methods for DML operations to handle errors

• Use System.debug() to mo