How to set a Rust array length dynamically?

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Is it possible to create array with dynamic length?

No. By definition, arrays have a length defined at compile time. A variable (because it can vary) is not known at compile time. The compiler would not know how much space to allocate on the stack to provide storage for the array.

You will need to use a Vec:

let arr = vec![0; length];

See also:

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