数组对象差异javascript angularjs

Question

我有2个数组对象,我想得到它们之间的区别如下:

array1 = [{"name":"MPCC","id":"tool:mpcc"}, {"name":"APP","id":"tool:app"}, {"name":"AII","id":"tool:aii"}, {"name":"VZZ","id":"tool:vzz"}, {"name":"USU","id":"tool:usu"}]

array2 = [{"name":"APP","id":"tool:app"}, {"name":"USU","id":"tool:usu"}]

result = [{"name":"MPCC","id":"tool:mpcc"}, {"name":"AII","id":"tool:aii"}, {"name":"VZZ","id":"tool:vzz"}]

这是代码:

$scope.initial = function(base, userData){
    var result = [];
    angular.forEach( base, function(baseItem) {
        angular.forEach( userData, function( userItem ) {
            if ( baseItem.id !== userItem.id ) {
                if (result.indexOf(baseItem) < 0) { 
                    result.push(baseItem);
                }
            }
        });
    });
    return result;
}
$scope.initial(array1, array2);

上面代码的问题是我得不到想要的结果.请告诉我出了什么问题.

Answer 1

这与Angular无关.

你可以这样做:

var result = array1.filter(function(item1) {
  for (var i in array2) {
    if (item1.id === array2[i].id) { return false; }
  };
  return true;
});

或者使用ES6语法:

var result = array1.filter(i1 => !array2.some(i2 => i1.id === i2.id));