<div ng-app="app" ng-controller="control">
  <h3 ng-repeat="content in repeatContent">ng-repeat: {{ content }}</h3>
</div>

let app = angular.module("app", []);
app.controller("control", ($scope) => {
  // 输出李滨泓
  $scope.repeatContent = ["李", "滨", "泓"];
  // 下面存在两个“泓”，会报错
  // $scope.repeatContent = ["李", "滨", "泓", "泓"];
})

let app = angular.module("app", []);

// 这里可以注入 $http 等 Provider
app.factory("Today", () => {
  let date = new Date();
  return {
    year: date.getFullYear(),
    month: date.getMonth() + 1,
    day: date.getDate()
  };
});

app.controller("control", (Today) => {
  console.log(Today.year);
  console.log(Today.month);
  console.log(Today.day);
});

let app = angular.module("app", []);

// 这里可以注入 $http 等 Provider
// 注意这里不可以使用 arrow function
// arrow function 不能作为 constructor
app.service("Today", function() {
  let date = new Date();
  this.year = date.getFullYear();
  this.month = date.getMonth() + 1;
  this.day = date.getDate();
});

app.controller("control", (Today) => {
  console.log(Today.year);
  console.log(Today.month);
  console.log(Today.day);
});

let app = angular.module("app", []);

// 这里可以注入 $http 等 Provider
// 注意这里不可以使用 arrow function
// arrow function 不能作为 constructor
app.provider("Today", function() {
  this.date = new Date();
  let self = this;

  this.setDate = (year, month, day) => {
    this.date = new Date(year, month - 1, day);
  }

  this.$get = () => {
    return {
      year: this.date.getFullYear(),
      month: this.date.getMonth() + 1,
      day: this.date.getDate()
    };
  };
});

// 这里重新配置了今天的日期是 2015年2月15日
// 注意这里注入的是 TodayProvider，使用驼峰命名来注入正确的需要配置的 provider
app.config((TodayProvider) => {
  TodayProvider.setDate(2015, 2, 15);
});

app.controller("control", (Today) => {
  console.log(Today.year);
  console.log(Today.month);
  console.log(Today.day);
});

app.config($interpolateProvider => {
  $interpolateProvider.startSymbol('{[{');
  $interpolateProvider.endSymbol('}]}');
});

$ npm install ng-annotate-loader --save-dev

// webpack.config.js
{
  test: /\.js?$/,
  exclude: /(node_modules|bower_components)/,
  loader: 'ng-annotate!babel?presets=es2015'
},

<div>{{ foo }}</div>
<button id="addBtn">go</button>

app.controller("control", ($scope) => {
  $scope.foo = 0;
  document.getElementById("addBtn").addEventListener("click", () => {
    $scope.foo++;
  }, false);
})

app.controller("control", ($scope) => {
  $scope.foo = 0;
  document.getElementById("addBtn").addEventListener("click", () => {
    
    $scope.$apply(function() {
      $scope.foo++;
    });

  }, false);
})

app.controller("control", ($scope) => {
  $scope.foo = 0;
  $scope.flag = 0;

  $scope.$watch("flag", (newValue, oldValue) => {

    // 当 $digest 循环检测 flag 时，如果新旧值不一致将调用该函数
    $scope.foo = $scope.flag;
  });

  document.getElementById("addBtn").addEventListener("click", () => {
    
    $scope.flag++;
    // 主动触发 $digest 循环
    $scope.$digest();
  }, false);
})

function $apply(expr) {
  try {
    return $eval(expr);
  } catch (e) {
    $exceptionHandler(e);
  } finally {
    $root.$digest();
  }
}