flatten
arrayFlattens nested arrays into a single-level array
Syntax
flatten(array) Parameters
array (array) The nested array to flatten
Returns
array A flattened single-level array
Examples
Input:
[[1, 2], [3, 4]] | flatten Output:
[1, 2, 3, 4] Input:
[1, [2, [3, 4]]] | flatten Output:
[1, 2, 3, 4]The flatten() function recursively flattens nested arrays into a single-level array, combining all elements regardless of nesting depth.
Usage
Use flatten() when working with nested data structures that need to be converted to a simple list, or when combining results from multiple array operations.