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/// Returns a vector of shuffled values
///
/// # Arguments
///
/// * `collection` - The vector to shuffle.
///
/// # Returns
///
/// Returns the new shuffled vector.
///
/// # Examples
///
/// ```
/// use rufl::collection;
///
/// assert_eq!(5, collection::shuffle(&vec![1, 2, 3, 4, 5]).len());
///
/// ```
pub fn shuffle<T: Copy>(collection: &Vec<T>) -> Vec<T> {
let mut indexes: Vec<usize> = (0..collection.len()).collect();
fastrand::shuffle(&mut indexes);
let mut result = Vec::with_capacity(collection.len());
for i in 0..indexes.len() {
let rand_index = indexes[i];
result.push(collection[rand_index]);
}
result
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_shuffle() {
assert_eq!(5, shuffle(&vec![1, 2, 3, 4, 5]).len());
}
}