We will learn to optimize JavaScript for better performance in Dynamics 365 / Power Apps. Before we start, make sure to subscribe to CRM Crate so that you can stay up to date in the field of Power Platform.
Strategies for optimizing JavaScript
Optimizing JavaScript performance in Microsoft Dynamics 365 is important to ensure that your custom scripts run efficiently and do not negatively impact the user experience. Here are some tips to help you curate JavaScript performance in MS Dynamics 365 as given below.
Minimize Script Loading
1. Use Content Delivery Networks (CDNs) to host common libraries like jQuery to leverage browser caching.
2. Combine and minify your JavaScript files to reduce the number of HTTP requests and file size.
Avoid Excessive DOM Manipulation
1. Minimize DOM manipulation as it can be slow. Instead, work with in-memory objects and make changes in bulk when possible.
2. Use document fragment for adding or updating multiple DOM elements at once to minimize reflows and repaints.
Caching Utilization
1. Utilize client-side caching mechanisms like localStorage or sessionStorage for temporary data storage.
2. Cache frequently used data to reduce the need for repetitive server calls.
Limit Dataverse Queries and Web API Calls
Make efficient use of FetchXML and Web API queries to retrieve data. Only request the data you need and consider using server-side filtering and sorting to reduce data transfer.
Optimize Loops and Iterations
Avoid nested loops and try to optimize loops as much as possible. Minimize the number of iterations and avoid unnecessary operations within loops.
Use Throttling and Debouncing
Implement debouncing and throttling techniques to control the frequency of function calls, especially when dealing with events like scrolling or resizing to prevent excessive script execution.
Avoid Synchronous Pattern Operations
Prefer asynchronous operations to keep the UI responsive. Use promises, async/await, or callbacks to handle long-running tasks.
Handle Errors Efficiently
Implement proper error handling to prevent unhandled exceptions and improve user experience. Use try-catch blocks when necessary.
Eliminate Redundant Code
Avoid duplicating code and functions. Reuse functions and use a modular approach to organize your code.
Use Batching
When making multiple updates to records, use batch operations provided by the Web API to reduce the number of individual requests.
Optimize Form Events
Only attach JavaScript event handlers to the form events you need. Remove unnecessary event handlers to reduce script execution.
Utilizing Field-Level Security
Respect field-level security when accessing and manipulating data to ensure data privacy and security.
Keep Application Up To Date
Stay informed about updates and best practices in Dynamics 365, as new versions and updates may introduce performance improvements and changes.
Remember that optimization is an ongoing process, and it’s essential to regularly test and monitor your JavaScript code for performance improvements. Prioritize optimization efforts based on the specific requirements and usage patterns of your Dynamics 365 implementation.
