在json文件/ angular2中创建新行

Question

我得到第一行的数据后，我想在json文件中有一个新行，以获取第二行的数据......

columns: payrollRows,

  generateRows(payrolls){
  var payrollRows = [];
  for(let payroll of payrolls){
    var wageTypeId = { 
        text: `${payroll.wageTypeId}`,
        fontSize: 10,
        width: 50,                                                                      
        alignment: 'left',
        margin:[0,10,0,0]
    }
    var description = { 
        text: `${payroll.wageType.description}`,
        fontSize: 10,
        width: 50,                                                                      
        margin:[0,10,0,0]
    }

        payrollRows.push(wageTypeId);
    payrollRows.push(description);