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x/ramda/anyPass.js

:ram: Practical functional Javascript
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import _curry1 from './internal/_curry1';import curryN from './curryN';import max from './max';import pluck from './pluck';import reduce from './reduce';

/** * Takes a list of predicates and returns a predicate that returns true for a * given list of arguments if at least one of the provided predicates is * satisfied by those arguments. * * The function returned is a curried function whose arity matches that of the * highest-arity predicate. * * @func * @memberOf R * @since v0.9.0 * @category Logic * @sig [(*... -> Boolean)] -> (*... -> Boolean) * @param {Array} predicates An array of predicates to check * @return {Function} The combined predicate * @see R.allPass * @example * * const isClub = R.propEq('suit', '♣'); * const isSpade = R.propEq('suit', '♠'); * const isBlackCard = R.anyPass([isClub, isSpade]); * * isBlackCard({rank: '10', suit: '♣'}); //=> true * isBlackCard({rank: 'Q', suit: '♠'}); //=> true * isBlackCard({rank: 'Q', suit: '♦'}); //=> false */var anyPass = _curry1(function anyPass(preds) { return curryN(reduce(max, 0, pluck('length', preds)), function() { var idx = 0; var len = preds.length; while (idx < len) { if (preds[idx].apply(this, arguments)) { return true; } idx += 1; } return false; });});export default anyPass;