curriculum/challenges/english/blocks/rosetta-code-challenges/596a8888ab7c01048de257d5.md
Write a function that returns a deep copy of a given object. The copy must not be the same object that was given.
This task will not test for:
<ul> <li>Objects with properties that are functions</li> <li>Date objects or object with properties that are Date objects</li> <li>RegEx or object with properties that are RegEx objects</li> <li>Prototype copying</li> </ul>const obj1 = { test: 'test' };
const obj2 = {
t: 'test',
a: ['an', 'array']
};
const obj3 = {
t: 'try',
o: obj2
};
deepcopy should be a function.
assert(typeof deepcopy === 'function');
deepcopy({test: "test"}) should return an object.
assert(typeof deepcopy(obj1) === 'object');
deepcopy should not return the same object that was provided.
assert(deepcopy(obj2) != obj2);
When passed an object containing an array, deepcopy should return a deep copy of the object.
assert.deepEqual(deepcopy(obj2), obj2);
When passed an object containing another object, deepcopy should return a deep copy of the object.
assert.deepEqual(deepcopy(obj3), obj3);
function deepcopy(obj) {
return true;
}
function deepcopy(obj) {
return JSON.parse(JSON.stringify(obj));
}