const array={{firstName:"x", lastName:"y"},{firstName:"a", lastName:"b"}}
// Method 1: Without using "{}"
array.map((item)=>(
<ComponentName fName={item.firstName} lName={item.lastName} />
));
// Method 2: With using "{}"
array.map((item)=>{
return(<ComponentName fName={item.firstName} lName={item.lastName} />)
});