// 移除对象的空属性
export function removeNullProps(object: Object = {}) {
  return Object.keys(object).reduce((prev, c) => {
    if (object[c]) {
      prev[c] = object[c];
    }
    return prev;
  }, {});
}

// 把参数的数组转成,分割的字符串
export function formatParam(
  params: object,
  removeKeys: string[] = [],
  ignoreArray = false,
) {
  if (typeof params === 'object') {
    for (let k in params) {
      if (!ignoreArray && params[k] instanceof Array) {
        params[k] = params[k].join(',');
      }
    }
  }
  removeKeys.forEach(element => {
    delete params[element];
  });

  return removeNullProps(params);
}