多维JSON分别改变数据类型

Question

JSON：

{  
   "time":"1520480018644",
   "start":"0",
   "search":{  
      "search":"",
      "smart":"true",
      "regex":"false",
      "caseInsensitive":"true"
   },
   "columns":[  
      {  
         "visible":"false",
         "search":{  
            "search":"",
            "smart":"true",
            "regex":"false",
            "caseInsensitive":"true"
         },
         "width":"200px"
      },
      {  
         "visible":"true",
         "search":{  
            "search":"",
            "smart":"true",
            "regex":"false",
            "caseInsensitive":"true"
         },
         "width":"200px"
      }
   ]
}

程序：

$.each(json_data, function(index, val) {
    $.each(val, function(index1, val1) {
        if(val1 == 'true'){
            json_data[index][index1] = True;
        }
        if(val1 == 'false'){
            json_data[index][index1] = False;
        }
    });
});

正如您可以在字符串中看到所有布尔值。如何将字符串分别更改为boolean？我没有任何替代方法，我只需要将字符串分别更改为boolean。抱歉我的英语不好。

Answer 1

创建一个简单的toBoolean方法

function toBoolean( str )
{
   return str == "true";
}

并将其用作

$.each(json_data, function(index, val) {
    $.each(val, function(index1, val1) {
        json_data[index][index1] = toBoolean( val1 );
    });
});

Answer 2

制作一个应该通过树的版本并更改所有嵌套的版本。

var json_data = {
  "time": "1520480018644",
  "start": "0",
  "search": {
    "search": "",
    "smart": "true",
    "regex": "false",
    "caseInsensitive": "true"
  },
  "columns": [{
      "visible": "false",
      "search": {
        "search": "",
        "smart": "true",
        "regex": "false",
        "caseInsensitive": "true"
      },
      "width": "200px"
    },
    {
      "visible": "true",
      "search": {
        "search": "",
        "smart": "true",
        "regex": "false",
        "caseInsensitive": "true"
      },
      "width": "200px"
    }
  ]
};

function processObject(object) {
  //loop over the object key values or the array elements
  $.each(object, function(key, value) {
    //if the value is a string, we want to possibly convert it
    if (typeof value === 'string') {
      //only convert if the value is true/false
      if (['true', 'false'].indexOf(value.toLowerCase()) > -1) {
        object[key] = (value.toLowerCase() == 'true');
      }
    } else {
      //the value is not a string, try to process it as an object or array
      processObject(value);
    }
  });
}

processObject(json_data);

console.log(json_data);

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

Answer 3

试试这个有用的演示：

＆＃13;

＆＃13;

var jsonObj = {
	"time": "1520480018644",
	"start": "0",
	"search": {
		"search": "",
		"smart": "true",
		"regex": "false",
		"caseInsensitive": "true"
	},
	"columns": [{
			"visible": "false",
			"search": {
				"search": "",
				"smart": "true",
				"regex": "false",
				"caseInsensitive": "true"
			},
			"width": "200px"
		},
		{
			"visible": "true",
			"search": {
				"search": "",
				"smart": "true",
				"regex": "false",
				"caseInsensitive": "true"
			},
			"width": "200px"
		}
	]
};


function convertBool(obj) {
  if (typeof obj !== 'object') {
    return;
  }
  
  for (var i in Object.keys(obj)) {
     (obj[Object.keys(obj)[i]] == "true") ? obj[Object.keys(obj)[i]] = true : convertBool(obj[Object.keys(obj)[i]]);
     (obj[Object.keys(obj)[i]] == "false") ? obj[Object.keys(obj)[i]] = false : convertBool(obj[Object.keys(obj)[i]]);
  }
  return jsonObj;
}

var convertedObj = convertBool(jsonObj);

console.log(convertedObj);

＆＃13;

＆＃13;

＆＃13;