Struct supermemo2::Item

pub struct Item { /* fields omitted */ }

A struct that holds the essential metadata for an item using the supermemo2 algorithm.

Methods

impl Item

pub fn new(repetitions: usize, efactor: f64) -> Self

Return an Item with the given number of repetitions and E-factor.

pub fn repetitions(&self) -> usize

Get the number of repetitions of this Item.

pub fn efactor(&self) -> f64

Get the E-factor of this Item.

pub fn interval(&self) -> usize

Returns the current interval of the Item. The interval is defined as the time in days since the previous review after which this Item will be due for review.

pub fn review(&self, quality: u8) -> Result<Self, Error>

Returns a new Item based on the given quality. The quality can be an integer between 0 and 5. If a quality above 5 is given, this will return an Err.

• 0 - complete blackout.
• 1 - incorrect response; the correct one remembered
• 2 - incorrect response; where the correct one seemed easy to recall
• 3 - correct response recalled with serious difficulty
• 4 - correct response after a hesitation
• 5 - perfect response

Trait Implementations

impl Clone for Item

fn clone(&self) -> Item

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Item

impl Debug for Item

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Default for Item

fn default() -> Self

Return a default new Item with 0 repetitions and an E-factor of 2.5.