Deep clone copy array with lodash (underscore)

copy.js

var array = [{},{},{}];

var copy = _.map(array, _.clone);

var array = [{},{},{}];
var copy = array.slice();

It's easy and not change array

Lodash _.clone only creates a shallow copy, same with Array.prototype.slice. If you want a deep copy I believe you will need one of the following:
1). JSON.parse(JSON.stringify(obj)) - doesn't handle functions
2). Lodash's _.cloneDeep (or and other similar library)
3). Custom clone method.

Also you can use the spread operator or Object.assign, something like that:
var array = [{id: 0}];
array.map(obj => ({...obj, id: 5}));

@Zaynex It is a Shallow Clone， not work for Reference type

var array = [{},{},{}];
var copy = array.slice();

It's easy and not change array

This won't work.

Beautiful touch!..