const numbers = [4, 2, 5, 1, 3]; numbers.sort((a, b) => a - b); console.log(numbers); //Result: // [1, 2, 3, 4, 5] numbers.sort(a, b) => b - a); console.log(numbers); //Result: // [5, 4, 3, 2, 1] numbers.sort(a, b) => b === a); console.log(numbers); //Result: // [4, 2, 5, 1, 3] const obj = [ {id: 225, name: 'John'}, {id: 123, name: 'Aida'}, {id: 897, name: 'Elisabeth'}, {id: 242, name: 'Jamal'} ] obj.sort((a,b) => (a.id > b.id) ? 1 : -1) //Result /*[ {id: 123, name: 'Aida'}, {id: 225, name: 'John'}, {id: 242, name: 'Jamal'}, {id: 897, name: 'Elisabeth'} ] */ obj.sort((a,b) => (a.name > b.name) ? 1 : -1) //Result /*[ {id: 123, name: 'Aida'}, {id: 225, name: 'John'}, {id: 242, name: 'Jamal'}, {id: 897, name: 'Elisabeth'} ] */