How to make a infinite Scroll in Datatable

Infinte Scroll for LWC Datatable

/**Required Variables */

// @track data = [];
// @track previousOffset = -1;
// @track offset = 0;
// @track limitOfRows = 5;
// totalContractsLineItems = 0;

/**Getter funtions */

// getData(){
//     //calculate number of rows
//     this.limitOfRows = this.height/50;
//     getCurrentContractLineItem({contractId:[Id],limitRecords:this.limitOfRows, offsetRecords:this.offset })
//     .then(result => {
//         this.showSpinner = true;
//         let tempData = this.parseData(result);
//         this.data = [...this.data, ...tempData];
//         this.offset += this.limitOfRows;
//         this.showSpinner = false;
//     }).catch(error => console.log(error))
// }

// getNumberOfTotalContractsLineItems(){
//     numberOfTotalRecords({contractId:[Id]})
//     .then(result => this.totalContractsLineItems = result).catch(error => console.log(error));
// }
/**Function Handler */

// loadMoreHandler(e){
//     e.target.isLoading = true;
    
//     if(this.data?.length >= this.totalContractsLineItems){
//         e.target.enableInfiniteLoading = false;
//     }else if(this.previousOffset !== this.offset){
//         this.getData();
//         this.previousOffset = this.offset;
//     }
//     e.target.isLoading = false;
// }