const data = [
{ name: 'John', age: 30, group: 'A' },
{ name: 'Mary', age: 25, group: 'B' },
{ name: 'Mike', age: 20, group: 'A' },
{ name: 'Jane', age: 15, group: 'C' },
{ name: 'Peter', age: 25, group: 'B' }
];
// for loop
for (let i = 0; i < data.length; i++) {
console.log(data[i]);
}