ramda/src/allPass.js

A practical functional library for JavaScript programmers.

var _curry1 = /*#__PURE__*/require("./internal/_curry1.js");
var curryN = /*#__PURE__*/require("./curryN.js");
var max = /*#__PURE__*/require("./max.js");
var pluck = /*#__PURE__*/require("./pluck.js");
var reduce = /*#__PURE__*/require("./reduce.js");
/**
 * Takes a list of predicates and returns a predicate that returns true for a
 * given list of arguments if every 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.anyPass, R.both
 * @example
 *
 *      const isQueen = R.propEq('Q', 'rank');
 *      const isSpade = R.propEq('♠︎', 'suit');
 *      const isQueenOfSpades = R.allPass([isQueen, isSpade]);
 *
 *      isQueenOfSpades({rank: 'Q', suit: '♣︎'}); //=> false
 *      isQueenOfSpades({rank: 'Q', suit: '♠︎'}); //=> true
 */
var allPass = /*#__PURE__*/_curry1(function allPass(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 false;
      }
      idx += 1;
    }
    return true;
  });
});
module.exports = allPass;