wake-up-neo.com

Wie entferne ich alle Null- und leeren String-Werte aus einem Json-Objekt?

Können Sie mir bitte sagen, wie Sie alle Null- und leeren String-Werte aus einem Json-Objekt entfernen können? Beim Löschen des Schlüssels wird eine Fehlermeldung angezeigt.

Das habe ich bisher, aber es funktioniert nicht richtig:

$.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>

23
user1542984

Sie löschen sjonObj.key wörtlich. Sie müssen die Array-Zugriffsnotation verwenden:

delete sjonObj[key];

Das löscht jedoch auch, wenn value gleich 0 ist, da Sie keinen strengen Vergleich verwenden. Verwenden Sie stattdessen ===:

$.each(sjonObj, function(key, value){
    if (value === "" || value === null){
        delete sjonObj[key];
    }
});

Dies führt jedoch nur zu einer flachen Bewegung des Objekts. Um dies gründlich zu tun, können Sie Rekursion verwenden:

(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>


Wenn Sie eine Bibliothek wie lodash/underscore.js verwenden möchten, können Sie stattdessen _.pick verwenden. Sie müssen jedoch immer noch Rekursion verwenden, um tief zu filtern, da keine Bibliothek eine Tiefenfilterfunktion bietet.

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);

Diese Variante hat den zusätzlichen Vorteil, dass das ursprüngliche Objekt unverändert bleibt, es wird jedoch eine vollständig neue Kopie erstellt, die weniger effizient wäre, wenn Sie das ursprüngliche Objekt nicht benötigen.

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>

48
Alexis King

Verwendung einiger ES6/ES2015:

Wenn Sie keine zusätzliche Funktion erstellen und die Elemente "Inline" entfernen möchten.

Object.keys(obj).forEach(k => (!obj[k] && obj[k] !== undefined) && delete obj[k]);

jsbin

Das gleiche, als Funktion geschrieben.

const removeEmpty = (obj) => {
  Object.keys(obj).forEach((k) => (!obj[k] && obj[k] !== undefined) && delete obj[k]);
  return obj;
};

jsbin

Diese Funktion verwendet recursion, um auch Elemente aus verschachtelten Objekten zu löschen:

const removeEmpty = (obj) => {
  Object.keys(obj).forEach(k =>
    (obj[k] && typeof obj[k] === 'object') && removeEmpty(obj[k]) ||
    (!obj[k] && obj[k] !== undefined) && delete obj[k]
  );
  return obj;
};

jsbin

Gleiche Funktion wie vorher, jedoch mit ES7/2016Object.entries :

const removeEmpty = (obj) => {
  Object.entries(obj).forEach(([key, val])  =>
    (val && typeof val === 'object') && removeEmpty(val) ||
    (val === null || val === "") && delete obj[key]
  );
  return obj;
};

Wie drittes Beispiel, aber in einfachem ES5:

function removeEmpty(obj) {
  Object.keys(obj).forEach(function(key) {
    (obj[key] && typeof obj[key] === 'object') && removeEmpty(obj[key]) ||
    (obj[key] === '' || obj[key] === null) && delete obj[key]
  });
  return obj;
};

jsbin

23
Rotareti

var data = [
   { "name": "bill", "age": 20 },
   { "name": "jhon", "age": 19 },
   { "name": "steve", "age": 16 },
   { "name": "larry", "age": 22 },
   null, null, null
];

//eliminate all the null values from the data
data = data.filter(function(x) { return x !== null }); 

console.log("data: " + JSON.stringify(data));

Sie müssen die Klammer-Notation verwenden, da key eine Variable ist, die den Schlüssel als Wert enthält

$.each(sjonObj, function(key,value){
   // console.log(value);
    if(value==""||value==null){
        delete sjonObj[key];
    }

});

delete sjonObj.key löscht die Eigenschaft key aus sjonObj. Stattdessen müssen Sie key als Variable mit dem Eigenschaftennamen verwenden.

Hinweis: Die verschachtelten Objekte werden immer noch nicht behandelt

2
Arun P Johny

Hier ist das optimierte Code-Snippet, um auch leere Arrays/Objekte zu entfernen:

function removeNullsInObject(obj) {
    if( typeof obj === 'string' ){ return; }
    $.each(obj, function(key, value){
        if (value === "" || value === null){
            delete obj[key];
        } else if ($.isArray(value)) {
            if( value.length === 0 ){ delete obj[key]; return; }
            $.each(value, function (k,v) {
                removeNullsInObject(v);
            });
        } else if (typeof value === 'object') {
            if( Object.keys(value).length === 0 ){ 
                delete obj[key]; return; 
            }
            removeNullsInObject(value);
        }
    }); 
 }

Danke @Alexis König :)

1
SuryaPavan

Aufbauend auf der Antwort von suryaPavan kann diese geringfügige Änderung das leere Objekt bereinigen, nachdem die invidivalen Leergüter innerhalb des Objekts oder Arrays entfernt wurden. Dadurch wird sichergestellt, dass sich kein leeres Array oder Objekt befindet.

function removeNullsInObject(obj) {
            if( typeof obj === 'string' || obj === "" ){
                return;
            }
            $.each(obj, function(key, value){
                if (value === "" || value === null){
                    delete obj[key];
                } else if ($.isArray(value)) {
                    if( value.length === 0 ){
                        delete obj[key];
                        return;
                    }
                    $.each(value, function (k,v) {
                        removeNullsInObject(v);
                    });
                    if( value.length === 0 ){
                        delete obj[key];
                    }
                } else if (typeof value === 'object') {
                    if( Object.keys(value).length === 0 ){
                        delete obj[key];
                        return;
                    }
                    removeNullsInObject(value);
                    if( Object.keys(value).length === 0 ){
                        delete obj[key];
                    }
                }
            });
 }
1
R K Punjal
function removeAllBlankOrNull(JsonObj) {
    $.each(JsonObj, function(key, value) {
        if (value === "" || value === null) {
            delete JsonObj[key];
        } else if (typeof(value) === "object") {
            JsonObj[key] = removeAllBlankOrNull(value);
        }
    });
    return JsonObj;
}

Löscht alle leeren Zeichenfolgen und Nullwerte rekursiv. Fiddle

1
usandfriends

Verbesserung des Codes von Alexis King für die Ausführung ohne Jquery und das Entfernen leerer Arrays und Arrays leerer Objekte (ohne Eigenschaften) rekursiv.

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": [{
            "sample1": "",
            "sample2": ""
        }],
        "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) {
  for(let key in obj){
    if (obj[key] === "" || obj[key] === null){
        delete obj[key];
    } else if (Object.prototype.toString.call(obj[key]) === '[object Object]') {
            filter(obj[key]);
    } else if (Array.isArray(obj[key])) {
        if(obj[key].length == 0){
            delete obj[key];
        }else{
            for(let _key in obj[key]){
                filter(obj[key][_key]);
            }
            obj[key] = obj[key].filter(value => Object.keys(value).length !== 0);
            if(obj[key].length == 0){
                delete obj[key];
            }
        }
    }   
}};

filter(sjonObj);
console.log(JSON.stringify(sjonObj, null, 3));
0
Akash Patel