JS Practice — Built-in Objects

Array.prototype.some() — find an admin user

📖 Usage Example

const users = [{active:false}, {active:true}, {active:false}]
users.some(u => u.active)  // → true

Use some() to test whether any object in an array has a particular property value.

Array.prototype.some() — objects

some() is commonly used to check whether an array of objects contains at least one item matching a condition.

Challenge: Implement hasAdmin(users) that returns true if any user has role === 'admin'.

hasAdmin([{role: 'user'}, {role: 'admin'}]) // → true
hasAdmin([{role: 'user'}, {role: 'mod'}])   // → false

💡 Hints (2)

• Destructure the object in the predicate for clarity: `({ role }) => role === 'admin'`.
• Strict equality (`===`) is important — `'administrator'` is not `'admin'`.