Flatten Array

Objective: Write a function that takes a nested array and returns a flat array with all elements at the same level.

Instructions:

1. Create a function called flattenArray that accepts an array containing nested arrays of various depths.
2. The function should return a new array where all the elements are "flattened" to the top level (i.e., no nested arrays).

Example:

flattenArray([1, [2, 3], [4, [5, 6]]]); 
// Output: [1, 2, 3, 4, 5, 6]

Requirements:

• The function must handle arrays with multiple levels of nesting.
• You cannot use the built-in Array.prototype.flat() method.
• The function should work recursively to ensure that deeply nested arrays are also flattened.

Hints:

1. Use recursion to handle arrays nested at multiple levels.
2. Concatenation or spreading can help combine arrays when flattenin

Bonus:

• Add a second argument to the function that limits how deep it should flatten the array (like Array.prototype.flat(depth)).