Question

我正在开发一个将表数组转换为JSON的函数，这是我的代码。我检查过strJSON是我想要的JSON格式，但它是一个字符串而不是JSON对象。当我尝试使用“eval”将其转换为JSON时，会显示一条错误消息，提示“Darren未定义”。我不知道发生了什么。

var myArray=[["Name","Age","Gender"],["Darren",31,"Male"],["Gakki",25,"Female"]];

//expected output
var myJSON=[{"Name":"Darren","Age":31,"Gender":"Male"},{"Name":"Gakki","Age":25,"Gender":"Female"}];

function convertJSON(tableData){
    var objJSON=[];
    var strJSON=[];
    tableData.forEach(function(rowData,i){
        if (i==0){
            rowData.forEach(function(cellData){
                head.push(cellData);
            });
        }
        else{
            var objData=[];
            var objEntry=[];
            rowData.forEach(function(cellData,j){
                 objData=head[j] + ":" + cellData;
                objEntry.push(objData);
             });
            strJSON.push("{" + objEntry + "}");
        }
    });
    objJSON=eval("[" + strJSON + "]");
    return objJSON
}

Answer 1

获取1个元素并按Array#shift
然后使用Array#map构建您的预期结果

var myArray=[["Name","Age","Gender"],["Darren",31,"Male"],["Gakki",25,"Female"]];

var properties = myArray.shift();

var result = myArray.map( a => {
  var newObj = {};
  properties.forEach ( (p, idx) => {
    newObj[p] = a[idx];
  });
  return newObj;
})

console.log(result);

Answer 2

    function html2json() {
   var json = '{';
   var otArr = [];
   var tbl2 = $('#dest_table tr').each(function(i) {        
      x = $(this).children();
      var itArr = [];
      x.each(function() {
         itArr.push('"' + $(this).text() + '"');
      });
      otArr.push('"' + i + '": [' + itArr.join(',') + ']');
   })
   json += otArr.join(",") + '}'

   return json;
}

Answer 3

请勿尝试手动创建JSON字符串。将普通对象放在一起并使用JSON.stringify进行转换。

＆＃13;

var myArray=[["Name","Age","Gender"],["Darren",31,"Male"],["Gakki",25,"Female"]];

//expected output
var myJSON=[{"Name":"Darren","Age":31,"Gender":"Male"},{"Name":"Gakki","Age":25,"Gender":"Female"}];

function convertJSON(tableData){
    var keys = tableData[0],
        objects = [];
        
    for(var i = 1; i < tableData.length; i++){
        var rowObject = {};
        tableData[i].forEach(function(item, index){
            rowObject[keys[index]] = item;
        });
        objects.push(rowObject);
    }
    
    return JSON.stringify(objects);
}

document.write(convertJSON(myArray));

＆＃13;

将表数组转换为JSON对象

3 个答案: