var _curry2 = require('./internal/_curry2');
var _dispatchable = require('./internal/_dispatchable');
var _xall = require('./internal/_xall');


/**
 * Returns `true` if all elements of the list match the predicate, `false` if
 * there are any that don't.
 *
 * Dispatches to the `all` method of the second argument, if present.
 *
 * Acts as a transducer if a transformer is given in list position.
 *
 * @func
 * @memberOf R
 * @since v0.1.0
 * @category List
 * @sig (a -> Boolean) -> [a] -> Boolean
 * @param {Function} fn The predicate function.
 * @param {Array} list The array to consider.
 * @return {Boolean} `true` if the predicate is satisfied by every element, `false`
 *         otherwise.
 * @see R.any, R.none, R.transduce
 * @example
 *
 *      var equals3 = R.equals(3);
 *      R.all(equals3)([3, 3, 3, 3]); //=> true
 *      R.all(equals3)([3, 3, 1, 3]); //=> false
 */
module.exports = _curry2(_dispatchable(['all'], _xall, function all(fn, list) {
  var idx = 0;
  while (idx < list.length) {
    if (!fn(list[idx])) {
      return false;
    }
    idx += 1;
  }
  return true;
}));