对if语句使用Javascript对象变量

Question

我正在使用javascript来显示购物篮的信息。我知道如何从中提取数据并创建元素，但我需要使用其中一个变量来表示if语句，并且我不确定如何使用。

如果这是true："isPunchOut": false,，那么我想用jQuery来定位，并执行$(".button").remove();

之类的操作

我该怎么做？

var retailerData = {
"del": {
    "zip": "",
    "city": ""
},
"user": {
    "country": "",
    "phone": "",
    "nbrOrders": 0,
    "isPunchOut": false,
    "name": "",
    "salesPerson": "",
    "customerNo": "",
    "email": ""
},
"order": {
    "shippingSum": 0.0,
    "shippingFormatSum": "\u20AC0",
    "orderno": "0",
    "orderFormatSum": "\u20AC130",
    "voucher": "",
    "orderFormatVat": "\u20AC27,30",
    "currencySymbol": "\u20AC",
    "currency": "EUR",
    "orderVat": 27.3,
    "orderSum": 130.0,
    "items": [{
        "imageURI": "\/imgr\/8c82380c-65f5-43aa-83ad-fae1215b5b39\/70\/70",
        "qtyAvail": 7,
        "price": 130.0,
        "qty": 1,
        "artno": "D630-T7100-GE-REF",
        "vat": 27.3,
        "formatVat": "\u20AC27,30",
        "id": "52307",
        "label": "D630 C2D-T7100/2GB/80GB/DVD/14"/NO COA WLAN",
        "category": "Computers - Notebooks",
        "formatPrice": "\u20AC130",
        "manufacturer": "Dell"
    }]
  }
 }

Answer 1

您可以查看以下JS代码以供参考：

var isPunchOut = retailerData["user"]["isPunchOut"];
if(isPunchOut === false)
    $(".button").remove();

Answer 2

我会说你应该首先尝试一些代码然后放在你遇到问题的地方。我们不在这里为你的问题编写代码。

var retailerData = {
"del": {
    "zip": "",
    "city": ""
},
"user": {
    "country": "",
    "phone": "",
    "nbrOrders": 0,
    "isPunchOut": false,
    "name": "",
    "salesPerson": "",
    "customerNo": "",
    "email": ""
},
"order": {
    "shippingSum": 0.0,
    "shippingFormatSum": "\u20AC0",
    "orderno": "0",
    "orderFormatSum": "\u20AC130",
    "voucher": "",
    "orderFormatVat": "\u20AC27,30",
    "currencySymbol": "\u20AC",
    "currency": "EUR",
    "orderVat": 27.3,
    "orderSum": 130.0,
    "items": [{
        "imageURI": "\/imgr\/8c82380c-65f5-43aa-83ad-fae1215b5b39\/70\/70",
        "qtyAvail": 7,
        "price": 130.0,
        "qty": 1,
        "artno": "D630-T7100-GE-REF",
        "vat": 27.3,
        "formatVat": "\u20AC27,30",
        "id": "52307",
        "label": "D630 C2D-T7100/2GB/80GB/DVD/14"/NO COA WLAN",
        "category": "Computers - Notebooks",
        "formatPrice": "\u20AC130",
        "manufacturer": "Dell"
    }]
  }
 }

if(retailerData.user.isPunchOut){
//your jquery operation
}

检测jsfiddle

Answer 3

怎么样？

   if (!retailerData.user.isPunchOut) { 
        $(".button").remove();
   }