javascript copy array map

let arr =["a","b","c"];
// ES6 way
const copy = [...arr];

// older method
const copy = Array.from(arr);const sheeps = ['Apple', 'Banana', 'Juice'];

// Old way
const cloneSheeps = sheeps.slice();

// ES6 way
const cloneSheepsES6 = [...sheeps];workers = workers.map(employee => 
  employee.occupation == "Iron Man" ? (employee.occupation = "Philantropist", employee) : (employee.occupation, employee)
);
element.baz = condition ? foo : bar;
array.map((employee) => Object.assign({ }, employee))