将表数组转换为JSON对象

Question

我正在研究将表数组转换为JSON的函数，这是我的代码。 我已经检查了strJSON是我想要的JSON格式，但是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，错误消息提示“未定义Darren”。 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

1. 获取1个元素并通过Array＃shift将其删除到原始数组中
2. 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

不要尝试手动创建JSON字符串。 将普通对象放在一起，然后使用JSON.stringify进行转换。

 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));