for...in和for each...in要区分好

Posted 2021-02-11 ixenos

当for...in和for each...in同时作用于一个对象时，for...in 获取的是key， for each...in获取的是value

 

for each(var i in loadInfo){

}

等同于:

for(var $each_i in loadInfo){

　　i=loadInfo[$each_i];

}