How to optimize the performance of Lightning components?
Optimize server round-trips: Before making a call to the server, make sure there’s no other option to obtain the data. When appropriate, consider passing data between components (using attributes, events, or methods) rather than retrieving the same data in different components.
Why are Web Components not available in Lightning app builder?
I’ve ensured that the local save is happening and the components are now showing up as expected. Go to componentname.meta.xml file under lwc in VS Check true attribute set to true. If isExposed is false, the component is not exposed to Lightning App Builder or Community Builder.
How to enable Lightning in salesforcedx Web Components?
Go to componentname.meta.xml file under lwc in VS Check true attribute set to true. If isExposed is false, the component is not exposed to Lightning App Builder or Community Builder. To allow the component to be used in Lightning App Builder or Community Builder, set isExposed to true and define at least one, which is a type of Lightning page.
How does data caching affect Lightning component performance?
For example, if all the components you build make their own isolated calls to the server to retrieve the data they need, you’ll probably end up with lots of redundant server calls, which can dramatically impact performance. Client-side data caching can solve that problem by sharing data among components.
How does lightning data service improve user interface consistency?
Lightning Data Service also improves user interface consistency: when a component updates a record, all the other components using that record are notified, and in most cases refreshed automatically. Check out the following components in DreamHouse to see the Lightning Data Service in action: PropertyMap, PropertySummary, MortgageCalculator.
How to use lazily instantiated components in Lightning?
For the right use cases, components can be hosted in specific areas in the Lightning Experience where they are lazily instantiated: You can use to lazily instantiate parts of the UI (see conditional rendering section). Some components (like and ) support lazy instantiation by default.
Why do we need Progressive disclosure in Lightning?
“Progressive disclosure is an interaction design technique often used in human computer interaction to help maintain the focus of a user’s attention by reducing clutter, confusion, and cognitive workload. This improves usability by presenting only the minimum data required for the task at hand” ( Wikipedia ).
How does unbound expression affect the performance of lightning?
Unbound expressions can have a positive impact on performance because they don’t maintain event listeners. However, they may not be the right solution for use cases where the UI has to be kept in sync with a changing model.