AngularJS Code Understanding -

can please me explain code segment in angularjs

$rootscope.compiledscope = $scope.$new(!0, $rootscope), $scope.variable = "somevalue"; 

1. what $new operator serving here
2. what !0?
3. how , used separate 2 statements , assign 1 variable on left

from documentation, $new function accepts 2 parameters.

first part:

$new(isolate, parent); 

isolate : if true creates isolate scope new scope creating. means wont inherit parent scope. inherit parent scope parent scope properties wont visible it.

parent : $scope parent of newly created scope.

!0 : in programming languages 0 == false. , negating give true.

so deciphering first part of code:

$rootscope.compiledscope = $scope.$new(!0, $rootscope) 

add property called compiledscope $rootscope value new isolate scope parent $rootscope.

isolate scope : scope not prototypically inherit parent scope. empty scope , non of parent's properties visible it.

second part

$scope.variable = "somevalue"; 

attach variable $scope , sets value somevalue. , comma in between separates 2 statement , same doing:

$rootscope.compiledscope = $scope.$new(!0, $rootscope); $scope.variable = "somevalue";