通过JavaScript动态创建JSON对象（没有连接字符串） [英] Create JSON object dynamically via JavaScript (Without concate strings)

问题描述

我有这个JSON数据：

I have this JSON data:

{
    "employees": [
        {
            "firstName": "John",
            "lastName": "Doe"
        },
        {
            "firstName": "Anna",
            "lastName": "Smith"
        },
        {
            "firstName": "Peter",
            "lastName": "Jones"
        }
    ]
}

假设我不知道我有多少列和行的员工，如何在JavaScript中创建此对象（没有连接字符串）？假设我在onGeneratedRow方法中获取每一行，并且我需要将每一列（firstName，lastName）推送到{}括号。

Suppose I don't know how many columns and rows of employees I have, how do I create this object in JavaScript (Without concate strings)? Assume that I get each row in "onGeneratedRow" method, and I need to push each column (firstName, lastName) to the '{}' brackets.

var viewData = { 
    employees : [] 
};

var rowNum = -1; 

function onGeneratedRow(columnsResult)
{
    rowNum = rowNum + 1;
    viewData.employees.push({});    
    columnsResult.forEach(function(column) {                  
    var columnName = column.metadata.colName;
    viewData.employees[rowNum][columnName] = column.value;  });
}

推荐答案

这就是你所需要的！

function onGeneratedRow(columnsResult)
{
    var jsonData = {};
    columnsResult.forEach(function(column) 
    {
        var columnName = column.metadata.colName;
        jsonData[columnName] = column.value;
    });
    viewData.employees.push(jsonData);
 }

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