Javascript 如何在数组中附加特定值？

这是我的指令。我想在现有数组中附加特定于数组的数组值

localStorage.getItem（'albumcomments'）=“[{“id”：1，“photocomment”：“sdfsdfs”}]”

我的预期产出是

[{"id":1,"photocomment":"test","like":"1","unlike":"1"}

现在输出是

[{"like":"["},{"like":"{"},{"like":"\""},{"like":"i"},{"like":"d"},{"like":"\""},{"like":":"},{"like":"1"},{"like":","},{"like":"\""},{"like":"p"},{"like":"h"},{"like":"o"},{"like":"t"},{"like":"o"},{"like":"c"},{"like":"o"},{"like":"m"},{"like":"m"},{"like":"e"},{"like":"n"},{"like":"t"},{"like":"\""},{"like":":"},{"like":"\""},{"like":"s"},{"like":"d"},{"like":"f"},{"like":"s"},{"like":"d"},{"like":"f"},{"like":"s"},{"like":"\""},{"like":"}"},{"like":"]"}]

---

试试看

我想你应该创建一个新的数组，然后你可以在迭代时推送这些东西：

var data=[{“id”：1，“光通信”：“test”}，{“id”：1，“光通信”：“test1”}]；
var newData=[]；
$。每个（数据、功能（i、项）{
push（{id:item.id，photocomment:item.photocomment，like:i，inspect:i}）；
});
console.log（newData）
试试这个，希望能有所帮助



    angular.module('albumlikeFeature',[]).directive('albumlikeFeature', ['$filter', '$route', function ($filter, $route) {

    return {
        restrict: 'E',
        scope: {},
        templateUrl: 'app/components/album/albumlikefeature.html',
        link : function(scope, element, attrs) {

    		scope.likeCount = 0;
    		scope.unlikeCount = 0;
    		
    		
            scope.likeClick = function (dataid) {
    		scope.likeCount += 1;          
    		
    		if(JSON.parse(localStorage.getItem('albumcomments'))){
    				
    				var newDataLike = [];
    				 angular.forEach(JSON.parse(localStorage.getItem('albumcomments')), function(likeCount, item){				
    					newDataLike.push({id:likeCount.id, photocomment:likeCount.photocomment, like:scope.likeCount,unlike:scope.unlikeCount});
    				});
    				
    				localStorage.setItem('albumcomments',JSON.stringify(newDataLike));
    		}
    		
          };
    	  
    	   scope.unlikeClick = function (dataid) {
    	   scope.unlikeCount += 1;          
    		
    		if(JSON.parse(localStorage.getItem('albumcomments'))){
    				
    				var newDataUnlike = [];
    				 angular.forEach(JSON.parse(localStorage.getItem('albumcomments')), function(i, item){
    					newDataUnlike.push({id:i.id, photocomment:i.photocomment,like:scope.likeCount,unlike:scope.unlikeCount});
    				});

    				console.log(newDataUnlike);
    				localStorage.setItem('albumcomments',JSON.stringify(newDataUnlike));
    		}
    		
          };
    	  
        }           
     }
    }]);
迭代数组并相应地改变对象？你不必把任何东西推到数组中…检查我更新的问题@FelixKlingBetter。为什么不能用“你”来代替“你”？这不是推特，没有真正的字符限制。事实上，这是错误的。为什么要将对象传递给jquery？@user2598136如果你不想使用jquery-我会重新编写纯js（但在我的exp-jquery中更容易），那不是我的意思。我的意思是，
$（这个）
是错误的。如果你运行代码，你会注意到原来的数组没有改变，因为你只是在修改jQuery object.im大多数ruby和scala开发人员，有时我会再次混淆js闭包等@FelixKlinginteresting，但是什么不能修改旧数组[object]在这种情况下，使用
.map
会更优雅一点。它运行了多次@jai现在我的输出是
[{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]，{like]：{like]，{like}，{like}，{like}，like}，like}，like}，{like}，{like}，{“：“o”}]
如何修复此问题？
localStorage.getItem('albumcomments') = JSON.parse('[{"id":1,"photocomment":"sdfsdfs"}]');

angular.module('albumlikeFeature',[]).directive('albumlikeFeature', ['$filter', '$route', function ($filter, $route) {

return {
  restrict: 'E',
  scope: {},
  templateUrl: 'app/components/album/albumlikefeature.html',
  link : function(scope, element, attrs) {

  scope.likeCount = 0;
  scope.unlikeCount = 0;


  scope.likeClick = function (dataid) {
  scope.likeCount += 1;          

  if(localStorage.getItem('albumcomments').length > 0){

    var newDataLike = [];

    $.each(localStorage.getItem('albumcomments'), function(value, key){
      $(this) = $this;

      console.log('test');

      newDataLike.push( {id: $this.id, photocomment: $this.photocomment, like: scope.likeCount} );
    });

    console.log(newDataLike);
    localStorage.setItem('albumcomments',JSON.stringify(newDataLike));

  }

};



    angular.module('albumlikeFeature',[]).directive('albumlikeFeature', ['$filter', '$route', function ($filter, $route) {

    return {
        restrict: 'E',
        scope: {},
        templateUrl: 'app/components/album/albumlikefeature.html',
        link : function(scope, element, attrs) {

    		scope.likeCount = 0;
    		scope.unlikeCount = 0;
    		
    		
            scope.likeClick = function (dataid) {
    		scope.likeCount += 1;          
    		
    		if(JSON.parse(localStorage.getItem('albumcomments'))){
    				
    				var newDataLike = [];
    				 angular.forEach(JSON.parse(localStorage.getItem('albumcomments')), function(likeCount, item){				
    					newDataLike.push({id:likeCount.id, photocomment:likeCount.photocomment, like:scope.likeCount,unlike:scope.unlikeCount});
    				});
    				
    				localStorage.setItem('albumcomments',JSON.stringify(newDataLike));
    		}
    		
          };
    	  
    	   scope.unlikeClick = function (dataid) {
    	   scope.unlikeCount += 1;          
    		
    		if(JSON.parse(localStorage.getItem('albumcomments'))){
    				
    				var newDataUnlike = [];
    				 angular.forEach(JSON.parse(localStorage.getItem('albumcomments')), function(i, item){
    					newDataUnlike.push({id:i.id, photocomment:i.photocomment,like:scope.likeCount,unlike:scope.unlikeCount});
    				});

    				console.log(newDataUnlike);
    				localStorage.setItem('albumcomments',JSON.stringify(newDataUnlike));
    		}
    		
          };
    	  
        }           
     }
    }]);