2 Basic steps to Create Simple Event in LWC

Below are 2 basic steps to create simple event in LWC:

Step 1 : Create Event using new Custom Event Method

const events =  new CustomEvent("YourEventName");

Step 2 : Dispatch Event using Dispatch Event Method

this.dispatchEvent(events);

for example: 

childcmp.js

import { LightningElement} from 'lwc';

export default class ChildCmp extends LightningElement {

    handleEvent(){

        // create event

        const events =  new CustomEvent("sampleEvent");

       

        // dispatch event

        this.dispatchEvent(events);

    }

}