Is this the proper method for creating a duplicate of an object?
class ObjectWrapper {
private _obj;
/***
* Copy object passed as argument to this._obj
*/
constructor (_obj: Object) {
this._obj = _obj;
}
/**
Return copy of this._obj (Return copied version of this._obj)**
* @return Object
*/
get obj() {
return this._obj;
}
I am curious about the concept of "returning a copy."
Copying an object in JavaScript can be done in a few different ways, one of which is using the Object.assign() method.
A traditional way to copy an object is through Object.assign():
const target = { a: 1, b: 2 };
const source = { b: 4, c: 5 };
const returnedTarget = Object.assign(target, source);
Keep in mind that Object.assign() only copies enumerable and own properties from the source object to the target object.
Another approach is using the spread operator in ESNext:
const source = { a: 1, b: 2 };
const target = {...source};
This feature, part of the Rest/Spread Properties for ECMAScript proposal (stage 4), allows for copying own enumerable properties from one object to another.
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