GoScrobble/web/node_modules/nth-check/lib/index.js

35 lines
1.2 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.compile = exports.parse = void 0;
var parse_1 = require("./parse");
Object.defineProperty(exports, "parse", { enumerable: true, get: function () { return parse_1.parse; } });
var compile_1 = require("./compile");
Object.defineProperty(exports, "compile", { enumerable: true, get: function () { return compile_1.compile; } });
/**
* Parses and compiles a formula to a highly optimized function.
* Combination of `parse` and `compile`.
*
* If the formula doesn't match any elements,
* it returns [`boolbase`](https://github.com/fb55/boolbase)'s `falseFunc`.
* Otherwise, a function accepting an _index_ is returned, which returns
* whether or not the passed _index_ matches the formula.
*
* Note: The nth-rule starts counting at `1`, the returned function at `0`.
*
* @param formula The formula to compile.
* @example
* const check = nthCheck("2n+3");
*
* check(0); // `false`
* check(1); // `false`
* check(2); // `true`
* check(3); // `false`
* check(4); // `true`
* check(5); // `false`
* check(6); // `true`
*/
function nthCheck(formula) {
return compile_1.compile(parse_1.parse(formula));
}
exports.default = nthCheck;