Frequently Asked LWC Interview Question [updated in 2024]

GOAL

Here is top frequently asked questions of LWC.

QUESTIONS

1. Explain LWC Lifecycle Hooks?

Here is official Salesforce doc: Lifecycle Hooks: https://developer.salesforce.com/docs/platform/lwc/guide/create-lifecycle-hooks.html

2. How LWC components communicates each Other?

1. Communication with Child comp
2. Communication with Parent Comp
3. Communication with unrelated comp

Here is Salesforce official document: https://trailhead.salesforce.com/content/learn/projects/communicate-between-lightning-web-components

3. Ways to call Apex from LWC

To call an Apex method:

• Import the Apex method
• Expose the Apex method to a component

Consider several ways to call an Apex method:

• Wire an Apex method to a component
• Call an Apex method imperatively

Here is official Salesforce doc: https://developer.salesforce.com/docs/platform/lwc/guide/apex.html