这是不可能的。见https://github.com/angular/angular.js/issues/263。取决于你在做什么，你可以使用布尔值来不进入循环体。喜欢的东西:

var keepGoing = true;
angular.forEach([0,1,2], function(count){
  if(keepGoing) {
    if(count == 1){
      keepGoing = false;
    }
  }
});

这是不可能的。见https://github.com/angular/angular.js/issues/263。取决于你在做什么，你可以使用布尔值来不进入循环体。喜欢的东西:

var keepGoing = true;
angular.forEach([0,1,2], function(count){
  if(keepGoing) {
    if(count == 1){
      keepGoing = false;
    }
  }
});

我更喜欢用return来做。将循环部分放在私有函数中，并在想要打破循环时返回。

onSelectionChanged(event) {
    let selectdata = event['api']['immutableService']['gridOptionsWrapper']['gridOptions']['rowData'];
    let selected_flag = 0;

    selectdata.forEach(data => {
      if (data.selected == true) {
        selected_flag = 1;
      }
    });

    if (selected_flag == 1) {
      this.showForms = true;
    } else {
      this.showForms = false;
    }
}

我会用return代替break。

angular.forEach([0,1,2], function(count){
  if(count == 1){
    return;
  }
});

效果非常好。

$scope.arr = [0, 1, 2];  
$scope.dict = {}
for ( var i=0; i < $scope.arr.length; i++ ) {
    if ( $scope.arr[i] == 1 ) {
        $scope.exists = 'yes, 1 exists';
        break;
    }
 }
 if ( $scope.exists ) {
     angular.forEach ( $scope.arr, function ( value, index ) {
                      $scope.dict[index] = value;
     });
 }