JavaScript Assert if two 2D arrays are equal assert arrays equal java,assert arrays equal python,assert arrays

Given two 2D arrays, how can I assert whether or not they are equal?

For example:

array1 = [[1,0],[2,1],[3,0]]
array2 = [[1,0],[2,1],[3,1]]

What is an efficient way to check whether array1 == array2?

Answer:1

The most efficient way would always depend on the size of the array/s and on your application and usage for them. You can check for the lengths of the 2 arrays for an early termination in case of a non match, but this might be considered as an extra step if that case rarely happens.

boolean areEqual(array array1, array array2){
if array1.length != array2.length
    return false;
for (int i=0;i<array1.length; i++)
    if(!areEqual(array1[i], array2[i])
        return false;
return true;
}

boolean areEqual(int first, int second){
    return first == second;
}
Answer:2

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