You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.4 KiB
55 lines
1.4 KiB
2 years ago
|
/**
|
||
|
|
* Returns a function that checks if an elements index matches the given rule
|
||
|
|
* highly optimized to return the fastest solution.
|
||
|
|
*
|
||
|
|
* @param parsed A tuple [a, b], as returned by `parse`.
|
||
|
|
* @returns A highly optimized function that returns whether an index matches the nth-check.
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* ```js
|
||
|
|
* const check = nthCheck.compile([2, 3]);
|
||
|
|
*
|
||
|
|
* check(0); // `false`
|
||
|
|
* check(1); // `false`
|
||
|
|
* check(2); // `true`
|
||
|
|
* check(3); // `false`
|
||
|
|
* check(4); // `true`
|
||
|
|
* check(5); // `false`
|
||
|
|
* check(6); // `true`
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
export declare function compile(parsed: [a: number, b: number]): (index: number) => boolean;
|
||
|
|
/**
|
||
|
|
* Returns a function that produces a monotonously increasing sequence of indices.
|
||
|
|
*
|
||
|
|
* If the sequence has an end, the returned function will return `null` after
|
||
|
|
* the last index in the sequence.
|
||
|
|
*
|
||
|
|
* @param parsed A tuple [a, b], as returned by `parse`.
|
||
|
|
* @returns A function that produces a sequence of indices.
|
||
|
|
* @example <caption>Always increasing (2n+3)</caption>
|
||
|
|
*
|
||
|
|
* ```js
|
||
|
|
* const gen = nthCheck.generate([2, 3])
|
||
|
|
*
|
||
|
|
* gen() // `1`
|
||
|
|
* gen() // `3`
|
||
|
|
* gen() // `5`
|
||
|
|
* gen() // `8`
|
||
|
|
* gen() // `11`
|
||
|
|
* ```
|
||
|
|
*
|
||
|
|
* @example <caption>With end value (-2n+10)</caption>
|
||
|
|
*
|
||
|
|
* ```js
|
||
|
|
*
|
||
|
|
* const gen = nthCheck.generate([-2, 5]);
|
||
|
|
*
|
||
|
|
* gen() // 0
|
||
|
|
* gen() // 2
|
||
|
|
* gen() // 4
|
||
|
|
* gen() // null
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
export declare function generate(parsed: [a: number, b: number]): () => number | null;
|
||
|
|
//# sourceMappingURL=compile.d.ts.map
|