Kata

Complete the function/method (depending on the language) to return true/True when its argument is an array that has the same nesting structures and same corresponding length of nested arrays as the first array.

For example:

 // should return true
[ 1, 1, 1 ].sameStructureAs( [ 2, 2, 2 ] );          
[ 1, [ 1, 1 ] ].sameStructureAs( [ 2, [ 2, 2 ] ] );  

 // should return false 
[ 1, [ 1, 1 ] ].sameStructureAs( [ [ 2, 2 ], 2 ] );  
[ 1, [ 1, 1 ] ].sameStructureAs( [ [ 2 ], 2 ] );  

// should return true
[ [ [ ], [ ] ] ].sameStructureAs( [ [ [ ], [ ] ] ] ); 

// should return false
[ [ [ ], [ ] ] ].sameStructureAs( [ [ 1, 1 ] ] );     

same_structure_as([1, 1, 1], [2, 2, 2]); // => true
same_structure_as([1, [1, 1]], [2, [2, 2]]); // => true
same_structure_as([1, [1, 1]], [[2, 2], 2]); // => false
same_structure_as([1, [1, 1]], [[2], 2]); // => false
same_structure_as([[[], []]], [[[], []]]); // => true
same_structure_as([[[], []]], [[1, 1]]); // => false

# should return true
[ 1, 1, 1 ].same_structure_as( [ 2, 2, 2 ] )
[ 1, [ 1, 1 ] ].same_structure_as( [ 2, [ 2, 2 ] ] )

# should return false 
[ 1, [ 1, 1 ] ].same_structure_as( [ [ 2, 2 ], 2 ] )
[ 1, [ 1, 1 ] ].same_structure_as( [ [ 2 ], 2 ] )

# should return true
[ [ [ ], [ ] ] ].same_structure_as( [ [ [ ], [ ] ] ] ); 

# should return false
[ [ [ ], [ ] ] ].same_structure_as( [ [ 1, 1 ] ] )   

# should return True
same_structure_as([ 1, 1, 1 ], [ 2, 2, 2 ] )
same_structure_as([ 1, [ 1, 1 ] ], [ 2, [ 2, 2 ] ] )

# should return False 
same_structure_as([ 1, [ 1, 1 ] ], [ [ 2, 2 ], 2 ] )
same_structure_as([ 1, [ 1, 1 ] ], [ [ 2 ], 2 ] )

# should return True
same_structure_as([ [ [ ], [ ] ] ], [ [ [ ], [ ] ] ] )

# should return False
same_structure_as([ [ [ ], [ ] ] ], [ [ 1, 1 ] ] )

For your convenience, there is already a function 'isArray(o)' declared and defined that returns true if its argument is an array, false otherwise.