how to initialise a 2D array of Strings in Rust

Question

I'm trying to make a 2D array of Strings using the ndarray crate..

    use ndarray::Array2;
    char_array = Array2::<String>::zeros((width, height));

Clearly, it doesn't work, so what's the equivalent of zeroes for initialising a String type array?

I've managed to get a work-around using:

    use ndarray::Array;
    let mut char_array = Array::from_elem((width,height),NEW_STR);

but it feels like there should be a better (proper) way?

fdan · Accepted Answer · 2025-09-06 12:50:38Z

5

You can use the default construction of Array2.

let char_array: Array2<String> = Array2::default((width, height));

edited Sep 6 at 12:50

answered Sep 6 at 12:42

fdan

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1 Comment

that works nicely! thanks so much fdan. I figured it had to be simple!