flo-utils/es/useBatch.js

some utils

/**
 * 函数拥有了单个操作或者批量操作元素的能力
 *
 * @param {*} fn
 *
 * @example
 *
 * const setStyle = useBatch((el, key, value) => {
    el.style[key] = value;
  });

  setStyle([...items], 'color', 'red'); // 拥有了批量处理能力
 *
 */
function useBatch(fn) {
  var _this = this;

  return function (subject) {
    for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    if (Array.isArray(subject)) {
      return subject.map(function (s) {
        return fn.call.apply(fn, [_this, s].concat(args));
      });
    }

    return fn.call.apply(fn, [_this, subject].concat(args));
  };
}

export default useBatch;