2695-Array-Wrapper

2695. Array Wrapper

Easy

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Create a class ArrayWrapper that accepts an array of integers in its constructor. This class should have two features:

• When two instances of this class are added together with the + operator, the resulting value is the sum of all the elements in both arrays.
• When the String() function is called on the instance, it will return a comma separated string surrounded by brackets. For example, [1,2,3].

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Example 1 :

nums = [[1,2],[3,4]], operation = "Add"
// Output: 10

Explanation :

const obj1 = new ArrayWrapper([1,2]);
const obj2 = new ArrayWrapper([3,4]);
obj1 + obj2; // 10

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Example 2 :

nums = [[23,98,42,70]], operation = "String"
// Output: "[23,98,42,70]"

Explanation :

const obj = new ArrayWrapper([23,98,42,70]); String(obj); // "[23,98,42,70]"

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Example 3 :

nums = [[],[]], operation = "Add"
// Output: 0

Explanation :

const obj1 = new ArrayWrapper([]); const obj2 = new ArrayWrapper([]); obj1 + obj2; // 0

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Constraints :

• 0 <= nums.length <= 1000
• 0 <= nums[i] <= 1000
• Note: nums is the array passed to the constructor

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