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renyi common utils
This is my first npm packge!
It is just for my unitls
isStatic 检测数据是不是除了symbol外的原始数据
isArray 判断数据是不是数组类型的数据
isEmpty 检查 value 是否为空
unique 数组去重，返回一个新数组
dateFormater dateFormater('YYYY-MM-DD HH:mm', t) ==> 2019-06-26 18:30
getUrlParam 获取Url参数，返回一个对象
isNaN 检查数据是否是非数字值
random 返回一个lower - upper之间的随机数
