angularjs foreach循环问题

Question

I'm new to AngularJS and I'd like to build an object with data from a json file.

This is my json file:

[
  {"id": 1, "name": "user1", "select": false },
  {"id": 2, "name": "user2", "select": false },
  {"id": 3, "name": "user3", "select": false },
  {"id": 4, "name": "user4", "select": false },
  {"id": 5, "name": "user5", "select": false }
]

And now I want to use foreach loop to check which user has got select == true and push this username to new array . So here is my first Try:

'use strict';

angular.module('apiOmat', [])


  .controller('UsersCtrl', function($scope, $http){
    $http.get('users.json').then(function(usersResponse) {
      $scope.users = usersResponse.data;
    });


$scope.submit = function(message,title){

var tempArr = [];
angular.forEach($scope.users.name, function(value,key){
 tempArr.push(value);
});

console.log(tempArr);

    $scope.messagebody = '{ "title" = "' + title + '", "message" = "' + message  + '"}'; 
}

 });

I also tried this:

  $scope.submit = function(message,title){

    var tempArr = [];
    angular.forEach($scope.users, function(value,key){
     tempArr.push( { key :  value } );
    });

    console.log(tempArr);

The Console logs the 5 object, but without any value. Just 1: Object 2: Object 3: Object ...

I know that the query for true or false is missing. But I want to fix this step before adding a query.

Answer 1

For this:

And now I want to use a foreach-loop to check which user has got select == true and push this username to my new array

$scope.submit = function(message,title){
   var tempArr = [];
   angular.forEach($scope.users, function(item){
     if( item.select == true){
       tempArr.push(item);
     }
   });

Another simple & better solution is to use filter instead.

$scope.submit = function(message,title){
    var tempArr = ($scope.users).filter(function(d){
         return (d.select == true);
    });
 });

console.log(tempArr)

Answer 2

try below

$scope.submit = function(message,title){

var tempArr = [];
angular.forEach($scope.users, function(i,j){

if(i.select == true)
{
 tempArr.push( i.name );
  }
});

console.log(tempArr);

Answer 3

try this

   $scope.submit = function(message,title){
   var tempArr = [];
   angular.forEach($scope.users, function(user){
   tempArr.push( {"name":user.name} );
   });

Answer 4

Try this one

var tempArr = [];
angular.forEach($scope.users, function(user){
    user.select && tempArr.push(user.name);
});

console.dir(tempArr);

Answer 5

Keep it simple:

$scope.submit = function(message, title){
   var tempArr = [];
   angular.forEach($scope.users, function(user){
    if( user.select == true) //filter select:true only
      tempArr.push( {"name_as_key":user.name} ); //name_as_key can be replaced if intended to
   });