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rated 0 times [  3] [ 6]  / answers: 1 / hits: 192917  / 10 Years ago, wed, may 21, 2014, 12:00:00

Can you please tell me how to remove all null and empty string values from an object? I am getting an error while deleting the key.


This is what I have so far, but it doesn't work properly:


$.each(sjonObj, function(key, value) {

    if(value == "" || value == null) {

        delete sjonObj.key;

    }

});





var sjonObj= {

  executionMode: SEQUENTIAL,

  coreTEEVersion: 3.3.1.4_RC8,

  testSuiteId: yyy,

  testSuiteFormatVersion: 1.0.0.0,

  testStatus: IDLE,

  reportPath: ,

  startTime: 0,

  durationBetweenTestCases: 20,

  endTime: 0,

  lastExecutedTestCaseId: 0,

  repeatCount: 0,

  retryCount: 0,

  fixedTimeSyncSupported: false,

  totalRepeatCount: 0,

  totalRetryCount: 0,

  summaryReportRequired: true,

  postConditionExecution: ON_SUCCESS,

  testCaseList: [

    {

      executionMode: SEQUENTIAL,

      commandList: [

        

      ],

      testCaseList: [

        

      ],

      testStatus: IDLE,

      boundTimeDurationForExecution: 0,

      startTime: 0,

      endTime: 0,

      label: null,

      repeatCount: 0,

      retryCount: 0,

      totalRepeatCount: 0,

      totalRetryCount: 0,

      testCaseId: a,

      summaryReportRequired: false,

      postConditionExecution: ON_SUCCESS

    },

    {

      executionMode: SEQUENTIAL,

      commandList: [

        

      ],

      testCaseList: [

        {

          executionMode: SEQUENTIAL,

          commandList: [

            {

              commandParameters: {

                serverAddress: www.ggp.com,

                echoRequestCount: ,

                sendPacketSize: ,

                interval: ,

                ttl: ,

                addFullDataInReport: True,

                maxRTT: ,

                failOnTargetHostUnreachable: True,

                failOnTargetHostUnreachableCount: ,

                initialDelay: ,

                commandTimeout: ,

                testDuration: 

              },

              commandName: Ping,

              testStatus: IDLE,

              label: ,

              reportFileName: tc_2-tc_1-cmd_1_Ping,

              endTime: 0,

              startTime: 0,

              repeatCount: 0,

              retryCount: 0,

              totalRepeatCount: 0,

              totalRetryCount: 0,

              postConditionExecution: ON_SUCCESS,

              detailReportRequired: true,

              summaryReportRequired: true

            }

          ],

          testCaseList: [

            

          ],

          testStatus: IDLE,

          boundTimeDurationForExecution: 0,

          startTime: 0,

          endTime: 0,

          label: null,

          repeatCount: 0,

          retryCount: 0,

          totalRepeatCount: 0,

          totalRetryCount: 0,

          testCaseId: dd,

          summaryReportRequired: false,

          postConditionExecution: ON_SUCCESS

        }

      ],

      testStatus: IDLE,

      boundTimeDurationForExecution: 0,

      startTime: 0,

      endTime: 0,

      label: null,

      repeatCount: 0,

      retryCount: 0,

      totalRepeatCount: 0,

      totalRetryCount: 0,

      testCaseId: b,

      summaryReportRequired: false,

      postConditionExecution: ON_SUCCESS

    }

  ]

};



$.each(sjonObj, function(key, value) {

    if(value ==  || value == null) {

        delete sjonObj.key;

    }

});



console.log(sjonObj);

<script src=https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js></script>




More From » jquery
 Answers
50

You're deleting sjonObj.key, literally. You need to use array access notation:



delete sjonObj[key];


However, that will also delete where value is equal to 0, since you're not using strict comparison. Use === instead:



$.each(sjonObj, function(key, value){

    if (value ===  || value === null){

        delete sjonObj[key];

    }

});


However, this will only walk the object shallowly. To do it deeply, you can use recursion:



(function filter(obj) {

    $.each(obj, function(key, value){

        if (value ===  || value === null){

            delete obj[key];

        } else if (Object.prototype.toString.call(value) === '[object Object]') {

            filter(value);

        } else if ($.isArray(value)) {

            $.each(value, function (k,v) { filter(v); });

        }

    });

})(sjonObj);






var sjonObj = {

  executionMode: SEQUENTIAL,

  coreTEEVersion: 3.3.1.4_RC8,

  testSuiteId: yyy,

  testSuiteFormatVersion: 1.0.0.0,

  testStatus: IDLE,

  reportPath: ,

  startTime: 0,

  durationBetweenTestCases: 20,

  endTime: 0,

  lastExecutedTestCaseId: 0,

  repeatCount: 0,

  retryCount: 0,

  fixedTimeSyncSupported: false,

  totalRepeatCount: 0,

  totalRetryCount: 0,

  summaryReportRequired: true,

  postConditionExecution: ON_SUCCESS,

  testCaseList: [

    {

      executionMode: SEQUENTIAL,

      commandList: [

        

      ],

      testCaseList: [

        

      ],

      testStatus: IDLE,

      boundTimeDurationForExecution: 0,

      startTime: 0,

      endTime: 0,

      label: null,

      repeatCount: 0,

      retryCount: 0,

      totalRepeatCount: 0,

      totalRetryCount: 0,

      testCaseId: a,

      summaryReportRequired: false,

      postConditionExecution: ON_SUCCESS

    },

    {

      executionMode: SEQUENTIAL,

      commandList: [

        

      ],

      testCaseList: [

        {

          executionMode: SEQUENTIAL,

          commandList: [

            {

              commandParameters: {

                serverAddress: www.ggp.com,

                echoRequestCount: ,

                sendPacketSize: ,

                interval: ,

                ttl: ,

                addFullDataInReport: True,

                maxRTT: ,

                failOnTargetHostUnreachable: True,

                failOnTargetHostUnreachableCount: ,

                initialDelay: ,

                commandTimeout: ,

                testDuration: 

              },

              commandName: Ping,

              testStatus: IDLE,

              label: ,

              reportFileName: tc_2-tc_1-cmd_1_Ping,

              endTime: 0,

              startTime: 0,

              repeatCount: 0,

              retryCount: 0,

              totalRepeatCount: 0,

              totalRetryCount: 0,

              postConditionExecution: ON_SUCCESS,

              detailReportRequired: true,

              summaryReportRequired: true

            }

          ],

          testCaseList: [

            

          ],

          testStatus: IDLE,

          boundTimeDurationForExecution: 0,

          startTime: 0,

          endTime: 0,

          label: null,

          repeatCount: 0,

          retryCount: 0,

          totalRepeatCount: 0,

          totalRetryCount: 0,

          testCaseId: dd,

          summaryReportRequired: false,

          postConditionExecution: ON_SUCCESS

        }

      ],

      testStatus: IDLE,

      boundTimeDurationForExecution: 0,

      startTime: 0,

      endTime: 0,

      label: null,

      repeatCount: 0,

      retryCount: 0,

      totalRepeatCount: 0,

      totalRetryCount: 0,

      testCaseId: b,

      summaryReportRequired: false,

      postConditionExecution: ON_SUCCESS

    }

  ]

};



(function filter(obj) {

    $.each(obj, function(key, value){

        if (value ===  || value === null){

            delete obj[key];

        } else if (Object.prototype.toString.call(value) === '[object Object]') {

            filter(value);

        } else if (Array.isArray(value)) {

            value.forEach(function (el) { filter(el); });

        }

    });

})(sjonObj);



console.log(sjonObj)

<script src=https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js></script>







Note that if you're willing to use a library like lodash/underscore.js, you can use _.pick instead. However, you will still need to use recursion to filter deeply, since neither library provides a deep filter function.



sjonObj = (function filter(obj) {

    var filtered = _.pick(obj, function (v) { return v !== '' && v !== null; });

    return _.cloneDeep(filtered, function (v) { return v !== filtered && _.isPlainObject(v) ? filter(v) : undefined; });

})(sjonObj);


This variant has the added advantage of leaving the original object unmodified, but it does create an entirely new copy, which would be less efficient if you don't need the original object.





var sjonObj = {

  executionMode: SEQUENTIAL,

  coreTEEVersion: 3.3.1.4_RC8,

  testSuiteId: yyy,

  testSuiteFormatVersion: 1.0.0.0,

  testStatus: IDLE,

  reportPath: ,

  startTime: 0,

  durationBetweenTestCases: 20,

  endTime: 0,

  lastExecutedTestCaseId: 0,

  repeatCount: 0,

  retryCount: 0,

  fixedTimeSyncSupported: false,

  totalRepeatCount: 0,

  totalRetryCount: 0,

  summaryReportRequired: true,

  postConditionExecution: ON_SUCCESS,

  testCaseList: [

    {

      executionMode: SEQUENTIAL,

      commandList: [

        

      ],

      testCaseList: [

        

      ],

      testStatus: IDLE,

      boundTimeDurationForExecution: 0,

      startTime: 0,

      endTime: 0,

      label: null,

      repeatCount: 0,

      retryCount: 0,

      totalRepeatCount: 0,

      totalRetryCount: 0,

      testCaseId: a,

      summaryReportRequired: false,

      postConditionExecution: ON_SUCCESS

    },

    {

      executionMode: SEQUENTIAL,

      commandList: [

        

      ],

      testCaseList: [

        {

          executionMode: SEQUENTIAL,

          commandList: [

            {

              commandParameters: {

                serverAddress: www.ggp.com,

                echoRequestCount: ,

                sendPacketSize: ,

                interval: ,

                ttl: ,

                addFullDataInReport: True,

                maxRTT: ,

                failOnTargetHostUnreachable: True,

                failOnTargetHostUnreachableCount: ,

                initialDelay: ,

                commandTimeout: ,

                testDuration: 

              },

              commandName: Ping,

              testStatus: IDLE,

              label: ,

              reportFileName: tc_2-tc_1-cmd_1_Ping,

              endTime: 0,

              startTime: 0,

              repeatCount: 0,

              retryCount: 0,

              totalRepeatCount: 0,

              totalRetryCount: 0,

              postConditionExecution: ON_SUCCESS,

              detailReportRequired: true,

              summaryReportRequired: true

            }

          ],

          testCaseList: [

            

          ],

          testStatus: IDLE,

          boundTimeDurationForExecution: 0,

          startTime: 0,

          endTime: 0,

          label: null,

          repeatCount: 0,

          retryCount: 0,

          totalRepeatCount: 0,

          totalRetryCount: 0,

          testCaseId: dd,

          summaryReportRequired: false,

          postConditionExecution: ON_SUCCESS

        }

      ],

      testStatus: IDLE,

      boundTimeDurationForExecution: 0,

      startTime: 0,

      endTime: 0,

      label: null,

      repeatCount: 0,

      retryCount: 0,

      totalRepeatCount: 0,

      totalRetryCount: 0,

      testCaseId: b,

      summaryReportRequired: false,

      postConditionExecution: ON_SUCCESS

    }

  ]

};



sjonObj = (function filter(obj) {

    var filtered = _.pick(obj, function (v) { return v !== '' && v !== null; });

    return _.cloneDeep(filtered, function (v) { return v !== filtered && _.isPlainObject(v) ? filter(v) : undefined; });

})(sjonObj);



console.log(sjonObj);

<script src=//cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.js></script>




[#70926] Sunday, May 18, 2014, 10 Years  [reply] [flag answer]
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