Javascript 数组不打印/输出 NaN 或 0

Question

当 number1 和 number2 为 NaN 或 0 时，如何隐藏/不打印/输出，只需修改以下内容

document.getElementById('inputTextToSave').innerHTML =  parseFloat(number1).toFixed(3) + "," + parseFloat(number2).toFixed(3);

Answer 1

var n1 = parseFloat(number1),
    n2 = parseFloat(number2),
    list = [];

// add values to array if they're not NaN or > 0
if (n1) {
    list.push(n1);
}

if (n2) {
    list.push(n2);
}

// combine values into a string separated with commas    
document.getElementById('inputTextToSave').innerHTML = list.join(",");