You are given an N-dimensional array (a nested list) and your task is to convert it into a 1D array. The N-dimensional array can have any number of nested lists and each nested list can contain any number of elements. The elements in the nested lists are integers. Write a function that takes an N-dimensional array as input and returns a 1D array.

Example 1:

Input:

<pre tabindex="0" class="chroma"><code>array = [1, [2, 3], [4, [5, 6]], 7]
</code></pre>

Output:

<pre tabindex="0" class="chroma"><code>flatten_array(array) -&gt; [1, 2, 3, 4, 5, 6, 7]
</code></pre>

Example 2:

Input:

<pre tabindex="0" class="chroma"><code>array = [[1, 2], [3, 4], [5, 6]]
</code></pre>

Output:

<pre tabindex="0" class="chroma"><code>flatten_array(array) -&gt; [1, 2, 3, 4, 5, 6]
</code></pre>

The task is to write a function that takes an N-dimensional array (nested lists) as input and returns a 1D array. The N-dimensional array can have any number of nested lists and each nested list can contain any number of elements.

Flatten N-Dimensional Array to 1D Array

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