Two superimposed map

1.1.  Two {} superimposition

1.1.1.  Features

Map{ } = map{ }+map2{ }；

1.1.2.  Code

$scope.params = {code:a,year:b}

There param = {

"footer.page": '1',

"footer.pageSize": '10',}

$scope.params = {

code:a,

year:b,

"footer.page": '1',

"footer.pageSize": '10',}

 

The method is about two kinds

（1）$scope.params = $.extends({},$scope.params,param);

（2）Object.assign(target, ...sources)

parameter

target

target.

sources

Source object.

return value

target.