Events are used in LWC for components communication. Let's dig a little deeper into the event handling. https://github.com/prashantk0001/lwc-switch-expressions. // TODO [#3100]: Update message to point to external documentation once available. What's the difference between a power rail and a signal line? Lets take one example for Declarative via html markup, Step 1) Create one child component component from where we will raise a event, Create child html file to get value from user, Step 2) Now update Child Comp javaScript file to raise a CustomEvent with text value, Step 3) Create one Parent component where we will handle the event. ', 'Invalid lwc:inner-html usage on element "{0}". Read documentation before using them. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? In this case the event is triggered at the child level and propagates up to the DOM. Note: 1. Why do LWC slots work inside this nested Aura component? Step 1) Create one child Component to show message from parent component, Step 2) Create javaScript method in child component to assign value on child attribute, Step 3) Create one Parent Component to call child component. Making statements based on opinion; back them up with references or personal experience. Nice post. That's where you'll want to write inline expressions as it adds the ease while implementing. 2. The second argument is an object that configures the event behavior. ', 'srcdoc attribute is disallowed on