# 15 Terms Everyone in the check if numpy array is empty Industry Should Know

*by*Sumit

I’ve heard that numpy arrays are empty, but I’m not sure if it’s true.

I thought I would post this in case anyone else has this problem. Since Im not sure if its true anymore, Im guessing it was true in the beginning.

Actually numpy arrays are defined by their size. So if your array is large enough, it will probably be empty. But even if the array is empty, it’s not guaranteed to be false. In fact, it is probably true. Because if it is not true, then I am the only variable in my array that I can be false for.

Im guessing this is because all the arrays in Python are zero-initialized. So when you do numpy.array(2,2), you are initializing a 2×2 array to be null. This is not true for all arrays though. For every other array, you can say for instance numpy.array(numpy.arange(5)) or numpy.array(numpy.arange(5,1, dtype=np.

It’s not as if there isn’t an easy way to test for things like this. You can write a single function that takes an array of type numpy.

You can get an error for this, but there is a much simpler way to do it. I am creating a function numpy.array.empty() that checks if an array is empty, and if it is, returns an empty array.

This is very useful if you want to know if an array contains numbers, strings, floats, or anything else. This function is called in the numpy code.

To test, you need to write a function that takes a type of array as an argument and returns the array, as seen in the code below.

You can also write a function that reads from an array, and then returns the value of the array in the function, as seen in the code below.

numpy also has a bunch of other array functions that are useful for various types of arrays. You can also use the numpy.empty() function to check if an array is empty. This is useful if you want to know if you have a non-empty array, as in the code below.