calling a lightning component from another component on a button click code example

Example: calling lightning component from another lightning component

var evt = $A.get("e.force:navigateToComponent");
        console.log('Event '+evt);
        var accountFromId = component.get("v.recordId");
        evt.setParams({
            componentDef  : "c:AffiliateSaveForm" ,
            componentAttribute : {
                accId : accountFromId
            }
        

        });
      
        evt.fire();