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function groupsCount(users){
let count = {};
// Insert your code here
return count;
}
const usersExample = [
{name: 'Pierre', city: 'Paris'},
{name: 'Paul', city: 'Lyon'},
{name: 'Jacques', city: 'Paris'},
{name: 'Julie', city: 'Grenoble'},
{name: 'Quentin', city: 'Orléans'},
{name: 'Emma', city: 'Grenoble'}
];
console.log(JSON.stringify(groupsCount(usersExample)));
// Expected: {"Paris":2,"Lyon":1,"Grenoble":2,"Orléans":1}