How to call a recursive function in javascript

Question

In my componentList I am going to have multiple objects.

if ($scope.componentList && $scope.componentList.length > 0) {
       angular.forEach($scope.componentList, function(admincomp, index) {
          $scope.validateAdmincomp(admincomp, index);
       });
 }



$scope.validateAdmincomp = function(admincomp, index) {
     for (var key in admincomp) {
       if (key !== "$$hashKey" && admincomp.hasOwnProperty(key)) {
           angular.element(document.querySelector('#' + key + index)).removeClass("errorhilight");
                }
            }
       if (admincomp.componentName == undefined || admincomp.componentName == "") {    
             angular.element(document.querySelector('#componentName' + index)).addClass("errorhilight");
                isValidData = false;
            }
};

The $scope.componentList format is going to be as follows

[
  {
    "revision": 0,  
    "componentName": "abc",
    "componentIdentification": "abc",
    "componentType": "1",
    "componentState": "1",
    "componentUrl": null,
    "componentId": "214",
    "rowId": "3",
    "items": [
      {
        "revision": 0,
        "componentName": "efg",
        "componentIdentification": "efg",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "215",
        "rowId": "3.1",
        "items": null,
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "16",
        "actionToPerform": "1"
      }
    ],
    "componentStateId": 0,
    "ctastatus": 0,
    "actionId": "37",
    "actionToPerform": "1"
  },
  {
    "revision": 0,
    "componentName": "hij",
    "componentIdentification": "hij",
    "componentType": "1",
    "componentState": "1",
    "componentUrl": null,
    "componentId": "206",
    "rowId": "1",
    "items": [
      {
        "revision": 0,
        "componentName": "klm",
        "componentIdentification": "klm",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "207",
        "rowId": "1.1",
        "items": [
          {
            "revision": 0,
            "componentName": "nop",
            "componentIdentification": "nop",
            "componentType": "2",
            "componentState": "1",
            "componentUrl": null,
            "componentId": "208",
            "rowId": "1.1.1",
            "items": [
              {
                "revision": 0,
                "componentName": "qrs",
                "componentIdentification": "qrs",
                "componentType": "2",
                "componentState": "1",
                "componentUrl": null,
                "componentId": "209",
                "rowId": "1.1.1.1",
                "items": null,
                "componentStateId": 0,
                "ctastatus": 0,
                "actionId": "26",
                "actionToPerform": "1"
              },
              {
                "revision": 0,
                "componentName": "tuv",
                "componentIdentification": "tuv",
                "componentType": "2",
                "componentState": "1",
                "componentUrl": null,
                "componentId": "210",
                "rowId": "1.1.1.2",
                "items": null,
                "componentStateId": 0,
                "ctastatus": 0,
                "actionId": "5",
                "actionToPerform": "1"
              }
            ],
            "componentStateId": 0,
            "ctastatus": 0,
            "actionId": "25",
            "actionToPerform": "1"
          }
        ],
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "1",
        "actionToPerform": "1"
      }
    ],
    "componentStateId": 0,
    "ctastatus": 0,
    "actionId": "37",
    "actionToPerform": "1"
  },
  {
    "revision": 0,
    "componentName": "wxy",
    "componentIdentification": "wxy",  
    "componentType": "1",
    "componentState": "1",
    "componentUrl": null,
    "componentId": "211",
    "rowId": "2",
    "items": [
      {
        "revision": 0,
        "componentName": "zab",
        "componentIdentification": "zab",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "212",
        "rowId": "2.1", 
        "items": null,
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "7",
        "actionToPerform": "1"
      },
      {
        "revision": 0,
        "componentName": "cde",
        "componentIdentification": "cde",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "213",
        "rowId": "2.2",
        "items": null,
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "12",
        "actionToPerform": "1"
      }
    ],
    "componentStateId": 0,
    "ctastatus": 0,
    "actionId": "37",
    "actionToPerform": "1"
  }
]

In the above code the parents are only validated as the forEach loop is considering only the $scope.componentList list and not considering the inside items[] list. I want to call validateAdmincomp function for each object. How can I call validateAdmincomp function forEach object.

Is validateAdmincomp your code? If yes, then you can modify it to validate a property and call itself if it's an object. — PM.
– PM., Commented Aug 17, 2017 at 5:54
@GauravSrivastava I have added the validateAdmincomp function — Murali
– Murali, Commented Aug 17, 2017 at 5:58

Sachet Gupta · Accepted Answer · 2017-08-17 05:59:34Z

2

Use the below code. Move your iteration logic to a method (recursive method)

if ($scope.componentList && $scope.componentList.length > 0) {
    validateList($scope.componentList) // starting point to iterate and validate the list
}

var validateList = function(list) {
    angular.forEach(list, function(admincomp, index) {
        $scope.validateAdmincomp(admincomp, index); // considering this method is doing some other validations
        if (admincomp.items && admincomp.items.lenght > 0)
            validateList(admincomp.items); // method calling itself
    });
}

answered Aug 17, 2017 at 5:59

Sachet Gupta

8255 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

atiq1589 · Accepted Answer · 2017-08-17 06:08:43Z

I am not sure you are looking for this or not. It will iterate each key and if its an object and not null it will call the function with the object.

var list = [
  {
    "revision": 0,  
    "componentName": "abc",
    "componentIdentification": "abc",
    "componentType": "1",
    "componentState": "1",
    "componentUrl": null,
    "componentId": "214",
    "rowId": "3",
    "items": [
      {
        "revision": 0,
        "componentName": "efg",
        "componentIdentification": "efg",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "215",
        "rowId": "3.1",
        "items": null,
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "16",
        "actionToPerform": "1"
      }
    ],
    "componentStateId": 0,
    "ctastatus": 0,
    "actionId": "37",
    "actionToPerform": "1"
  },
  {
    "revision": 0,
    "componentName": "hij",
    "componentIdentification": "hij",
    "componentType": "1",
    "componentState": "1",
    "componentUrl": null,
    "componentId": "206",
    "rowId": "1",
    "items": [
      {
        "revision": 0,
        "componentName": "klm",
        "componentIdentification": "klm",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "207",
        "rowId": "1.1",
        "items": [
          {
            "revision": 0,
            "componentName": "nop",
            "componentIdentification": "nop",
            "componentType": "2",
            "componentState": "1",
            "componentUrl": null,
            "componentId": "208",
            "rowId": "1.1.1",
            "items": [
              {
                "revision": 0,
                "componentName": "qrs",
                "componentIdentification": "qrs",
                "componentType": "2",
                "componentState": "1",
                "componentUrl": null,
                "componentId": "209",
                "rowId": "1.1.1.1",
                "items": null,
                "componentStateId": 0,
                "ctastatus": 0,
                "actionId": "26",
                "actionToPerform": "1"
              },
              {
                "revision": 0,
                "componentName": "tuv",
                "componentIdentification": "tuv",
                "componentType": "2",
                "componentState": "1",
                "componentUrl": null,
                "componentId": "210",
                "rowId": "1.1.1.2",
                "items": null,
                "componentStateId": 0,
                "ctastatus": 0,
                "actionId": "5",
                "actionToPerform": "1"
              }
            ],
            "componentStateId": 0,
            "ctastatus": 0,
            "actionId": "25",
            "actionToPerform": "1"
          }
        ],
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "1",
        "actionToPerform": "1"
      }
    ],
    "componentStateId": 0,
    "ctastatus": 0,
    "actionId": "37",
    "actionToPerform": "1"
  },
  {
    "revision": 0,
    "componentName": "wxy",
    "componentIdentification": "wxy",  
    "componentType": "1",
    "componentState": "1",
    "componentUrl": null,
    "componentId": "211",
    "rowId": "2",
    "items": [
      {
        "revision": 0,
        "componentName": "zab",
        "componentIdentification": "zab",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "212",
        "rowId": "2.1", 
        "items": null,
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "7",
        "actionToPerform": "1"
      },
      {
        "revision": 0,
        "componentName": "cde",
        "componentIdentification": "cde",
        "componentType": "2",
        "componentState": "1",
        "componentUrl": null,
        "componentId": "213",
        "rowId": "2.2",
        "items": null,
        "componentStateId": 0,
        "ctastatus": 0,
        "actionId": "12",
        "actionToPerform": "1"
      }
    ],
    "componentStateId": 0,
    "ctastatus": 0,
    "actionId": "37",
    "actionToPerform": "1"
  }
]

function rec(obj){
 for (let key in obj){
  if(typeof obj[key] == "object" && obj[key]){
  console.log(key);
    rec(obj[key]);
  }
 }
}

list.forEach(function(o){
rec(o);
})

Collectives™ on Stack Overflow

How to call a recursive function in javascript

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related