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我试图弄清楚如何在 js 数组中添加 if 语句，我在想也许速记条件会起作用，但我没有运气，这就是我所拥有的。

如果值不为空，我试图只包含数组。

gross1 = document.getElementById('gross1').value;
profit1 = document.getElementById('profit1').value;

gross2 = document.getElementById('gross2').value;
profit2 = document.getElementById('profit2').value;

gross3 = document.getElementById('gross3').value;
profit3 = document.getElementById('profit3').value;

function drawVisualization() {
var wrapper = new google.visualization.ChartWrapper({
          chartType: 'ColumnChart',
          dataTable: [['', 'Sales', 'Cost of Goods'],
                      ['Product 1', parseInt(gross1), parseInt(profit1)],
                        if(gross2 != '' && profit2 != ''){
                      ['Product 2', parseInt(gross2), parseInt(profit2)],
                        }elseif(gross3 != '' && profit != ''){
                      ['Product 3', parseInt(gross3), parseInt(profit3)]
                      }],
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