判断普通javascript对象是否为空(含有可枚举的属性,自有的.继承的都可以),可使用jQuery 3.2.1版的isEmptyObject()方法: isEmptyObject: function( obj ) { var name; for ( name in obj ) { return false; } return true; } As of jQuery 1.4 this method checks both properties on the object itself and
.将json对象转化为json字符串,再判断该字符串是否为"{}" var data = {}; var b = (JSON.stringify(data) == "{}"); alert(b);//true .for in 循环判断 var obj = {}; var b = function() { for(var key in obj) { return false; } return true; } alert(b());//true .jquery的isE
方法一: JSON.stringify(formmanage_listVue.updataObj)=='{}' var data = {}; var b = (JSON.stringify(data) == "{}"); alert(b);//true 方法二: Object.keys(formmanage_listVue.updataObj).length== 方法三: jquery的isEmptyObject方法 var data = {}; var b = $.isEmptyOb