How to use hyperlink in lightning datatable in salesforce?

Hi Prachi,

Following is a sample Code to add hyperlink in Lightning DataTable, please make changes as per your need.

Apex Controller

public class TestClass111 {
    @AuraEnabled
    public static List<Account> getAccounts(){
        List<Account> acList = new List<Account>();
        acList = [Select Id, Name, Website From Account Where Website != NULL LIMIT 10];
        return acList;
    }
}

Lightning Component

<aura:component controller="TestClass111" implements="flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction" access="global" >
    <aura:attribute name="accountList" type="Account[]"/>
    <aura:attribute name="columns" type="List"/>
    <aura:handler name="init" value="{!this}" action="{!c.onInit}"/>
    <h4>Lightning Data Table</h4>
    <lightning:datatable
    	data="{!v.accountList}"
        columns="{!v.columns}"
        keyField="Id"
        hideCheckboxColumn="true"
    />
</aura:component>

Lightning Controller

({
	onInit : function(component, event, helper) {
        var action = component.get("c.getAccounts");
        action.setCallback(this, function(response){
            if(response.getState() === 'SUCCESS'){
                component.set("v.accountList", response.getReturnValue());
                var columns = [
                    {label:'Id', fieldName:'Id', type:'String'},
                    {label:'Name', fieldName:'Name', type:'String'},
                    {label:'Website', fieldName:'Website', type: 'url', typeAttributes: { label: 'My Website Name', target:'_blank'}}
                ];
                component.set("v.columns", columns);
            }
            else{
                alert(response.getState());
            }
        });
        $A.enqueueAction(action);
	}
})