typeObj(obj) {
const typeMap = {
‘[object Array]‘: ‘Array‘,
‘[object Object]‘: ‘Object‘,
‘[object String]‘: ‘String‘,
‘[object Number]‘: ‘Number‘
}
const typeStr = Object.prototype.toString.call(obj);
return typeMap[typeStr] || "";
}
原文：https://www.cnblogs.com/fatetop/p/14304000.html