Using None to index all elements
| """ | |
| You have a function that takes an argument, this argument is the index of the last element you want to show from an | |
| array. At some point you want found out that you want to use this function but grab all elements. Just pass None. | |
| """ | |
| def some_function(last_idx): | |
| print(some_arr[:last_idx]) | |
| some_arr = range(100) | |
| last_idx = 5 | |
| some_function(last_idx) | |
| last_idx = None | |
| some_function(last_idx) |
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