我正在尝试在JSON数据中输出所有客户ID。我正在使用ejs作为模板引擎。到目前为止，我只能通过以下方式成功输出1个客户ID：
<p><%= jsonOrderData.orders[0].customer.id %></p>
当我尝试遍历每个订单时，我得到无法读取未定义的属性'id'
用于循环遍历
<% for (var i = 0; i < jsonOrderData.orders.length; i++) {%>
<p>Customer: <%= jsonOrderData.orders[i].customer.id %></p>
<% }; %>
如果我在客户之后删除.id，错误将消失。然后输出 客户：[对象对象] 50次，即json数据的有效期。
我不明白为什么在没有手动设置索引的循环的情况下正常添加.id时，为什么在循环中无法运行？
JSON数据（削减2个订单）
{
"orders": [
{
"id": 533078016054,
"email": "email@gmail.com",
"closed_at": null,
"created_at": "2018-08-10T05:03:36+01:00",
"updated_at": "2018-08-10T05:03:37+01:00",
"number": 52,
"note": "",
"token": "f4877048c08eb98180ee5fda34f978bc",
"gateway": "manual",
"test": false,
"total_price": "13.98",
"subtotal_price": "13.98",
"total_weight": 0,
"total_tax": "0.00",
"taxes_included": false,
"currency": "GBP",
"financial_status": "pending",
"confirmed": true,
"total_discounts": "0.00",
"total_line_items_price": "13.98",
"cart_token": null,
"buyer_accepts_marketing": false,
"name": "#MW1052",
"referring_site": null,
"landing_site": null,
"cancelled_at": null,
"cancel_reason": null,
"total_price_usd": "18.00",
"checkout_token": null,
"reference": null,
"user_id": 1706983449,
"location_id": null,
"source_identifier": null,
"source_url": null,
"processed_at": "2018-08-10T05:03:36+01:00",
"device_id": null,
"phone": null,
"customer_locale": null,
"app_id": 1354745,
"browser_ip": null,
"landing_site_ref": null,
"order_number": 1052,
"discount_applications": [],
"discount_codes": [],
"note_attributes": [],
"payment_gateway_names": [
"manual"
],
"processing_method": "manual",
"checkout_id": null,
"source_name": "shopify_draft_order",
"fulfillment_status": null,
"tax_lines": [],
"tags": "",
"contact_email": "email@gmail.com",
"order_status_url": "https://checkout.shopify.com/1245839385/orders/f4877048c08eb98180ee5fda34f978bc/authenticate?key=redacted",
"admin_graphql_api_id": "gid://shopify/Order/redacted",
"line_items": [
{
"id": 1350736445494,
"variant_id": 8725905539126,
"title": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt",
"quantity": 1,
"price": "6.99",
"sku": "ss15",
"variant_title": "S / Bottle Green",
"vendor": "Fruit Of The Loom",
"fulfillment_service": "manual",
"product_id": 719146287158,
"requires_shipping": true,
"taxable": false,
"gift_card": false,
"name": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt - S / Bottle Green",
"variant_inventory_management": "shopify",
"properties": [],
"product_exists": true,
"fulfillable_quantity": 1,
"grams": 0,
"total_discount": "0.00",
"fulfillment_status": null,
"discount_allocations": [],
"admin_graphql_api_id": "gid://shopify/LineItem/1350736445494",
"tax_lines": [
{
"title": "VAT",
"price": "0.00",
"rate": 0.2
}
]
},
{
"id": 1350736478262,
"variant_id": 8725905440822,
"title": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt",
"quantity": 1,
"price": "6.99",
"sku": "ss12",
"variant_title": "S / Heather Grey",
"vendor": "Fruit Of The Loom",
"fulfillment_service": "manual",
"product_id": 719146287158,
"requires_shipping": true,
"taxable": false,
"gift_card": false,
"name": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt - S / Heather Grey",
"variant_inventory_management": "shopify",
"properties": [],
"product_exists": true,
"fulfillable_quantity": 1,
"grams": 0,
"total_discount": "0.00",
"fulfillment_status": null,
"discount_allocations": [],
"admin_graphql_api_id": "gid://shopify/LineItem/1350736478262",
"tax_lines": [
{
"title": "VAT",
"price": "0.00",
"rate": 0.2
}
]
}
],
"shipping_lines": [],
"billing_address": {
"first_name": "John",
"address1": "17A Oaklands Business Centre",
"phone": null,
"city": "Worthing",
"zip": "BN11 5LH",
"province": null,
"country": "United Kingdom",
"last_name": "Doe",
"address2": "Elm Grove",
"company": null,
"latitude": 50.8162744,
"longitude": -0.4010653,
"name": "Jogn Doe",
"country_code": "GB",
"province_code": null
},
"shipping_address": {
"first_name": "John",
"address1": "17A Oaklands Business Centre",
"phone": null,
"city": "Worthing",
"zip": "BN11 5LH",
"province": null,
"country": "United Kingdom",
"last_name": "Doe",
"address2": "Elm Grove",
"company": null,
"latitude": 50.8162744,
"longitude": -0.4010653,
"name": "John Doe",
"country_code": "GB",
"province_code": null
},
"fulfillments": [],
"refunds": [],
"customer": {
"id": 556974014518,
"email": "email@gmail.com",
"accepts_marketing": false,
"created_at": "2018-06-26T00:26:55+01:00",
"updated_at": "2018-08-10T05:03:36+01:00",
"first_name": "John",
"last_name": "Doe",
"orders_count": 22,
"state": "enabled",
"total_spent": "0.00",
"last_order_id": 533078016054,
"note": null,
"verified_email": true,
"multipass_identifier": null,
"tax_exempt": false,
"phone": null,
"tags": "",
"last_order_name": "#MW1052",
"admin_graphql_api_id": "gid://shopify/Customer/556974014518",
"default_address": {
"id": 601657278518,
"customer_id": 556974014518,
"first_name": "John",
"last_name": "Doe",
"company": null,
"address1": "17A Oaklands Business Centre",
"address2": "Elm Grove",
"city": "Worthing",
"province": null,
"country": "United Kingdom",
"zip": "BN11 5LH",
"phone": null,
"name": "John Doe",
"province_code": null,
"country_code": "GB",
"country_name": "United Kingdom",
"default": true
}
}
},
{
"id": 532977778742,
"email": "james@bungeedesign.com",
"closed_at": null,
"created_at": "2018-08-09T22:18:53+01:00",
"updated_at": "2018-08-09T22:18:53+01:00",
"number": 51,
"note": "",
"token": "a292d75bd7011cf255a1bf236b23d0a5",
"gateway": "manual",
"test": false,
"total_price": "6.99",
"subtotal_price": "6.99",
"total_weight": 0,
"total_tax": "0.00",
"taxes_included": false,
"currency": "GBP",
"financial_status": "pending",
"confirmed": true,
"total_discounts": "0.00",
"total_line_items_price": "6.99",
"cart_token": null,
"buyer_accepts_marketing": true,
"name": "#MW1051",
"referring_site": null,
"landing_site": null,
"cancelled_at": null,
"cancel_reason": null,
"total_price_usd": "9.00",
"checkout_token": null,
"reference": null,
"user_id": 1706983449,
"location_id": 1327759385,
"source_identifier": null,
"source_url": null,
"processed_at": "2018-08-09T22:18:53+01:00",
"device_id": null,
"phone": null,
"customer_locale": null,
"app_id": 1354745,
"browser_ip": null,
"landing_site_ref": null,
"order_number": 1051,
"discount_applications": [],
"discount_codes": [],
"note_attributes": [],
"payment_gateway_names": [
"manual"
],
"processing_method": "manual",
"checkout_id": null,
"source_name": "shopify_draft_order",
"fulfillment_status": null,
"tax_lines": [],
"tags": "",
"contact_email": "james@bungeedesign.com",
"order_status_url": "https://checkout.shopify.com/1245839385/orders/a292d75bd7011cf255a1bf236b23d0a5/authenticate?key=9322877ce6ce34be2feeb127d73d0f89",
"admin_graphql_api_id": "gid://shopify/Order/532977778742",
"line_items": [
{
"id": 1350552453174,
"variant_id": 8725905408054,
"title": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt",
"quantity": 1,
"price": "6.99",
"sku": "ss11",
"variant_title": "S / Black",
"vendor": "Fruit Of The Loom",
"fulfillment_service": "manual",
"product_id": 719146287158,
"requires_shipping": true,
"taxable": false,
"gift_card": false,
"name": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt - S / Black",
"variant_inventory_management": "shopify",
"properties": [],
"product_exists": true,
"fulfillable_quantity": 1,
"grams": 0,
"total_discount": "0.00",
"fulfillment_status": null,
"discount_allocations": [],
"admin_graphql_api_id": "gid://shopify/LineItem/1350552453174",
"tax_lines": [
{
"title": "VAT",
"price": "0.00",
"rate": 0.2
}
]
}
],
"shipping_lines": [],
"fulfillments": [],
"refunds": [],
"customer": {
"id": 552537620534,
"email": "james@bungeedesign.com",
"accepts_marketing": true,
"created_at": "2018-06-15T10:44:13+01:00",
"updated_at": "2018-08-09T22:18:53+01:00",
"first_name": "James",
"last_name": "Rogers",
"orders_count": 18,
"state": "enabled",
"total_spent": "0.00",
"last_order_id": 532977778742,
"note": null,
"verified_email": true,
"multipass_identifier": null,
"tax_exempt": false,
"phone": null,
"tags": "password page, prospect",
"last_order_name": "#MW1051",
"admin_graphql_api_id": "gid://shopify/Customer/552537620534"
}
}
]
}
答案 0 :(得分：0)
您所拥有的一切运行良好。翻译中可能会丢失某些内容，或者.id处于另一个级别。我的猜测是您没有按照预期设置变量jsonOrderData。
如果您console.log(jsonOrderData);，您会得到期望的结果吗？
这很好：
const json = {
"orders": [
{
"id": 533078016054,
"email": "email@gmail.com",
"closed_at": null,
"created_at": "2018-08-10T05:03:36+01:00",
"updated_at": "2018-08-10T05:03:37+01:00",
"number": 52,
"note": "",
"token": "f4877048c08eb98180ee5fda34f978bc",
"gateway": "manual",
"test": false,
"total_price": "13.98",
"subtotal_price": "13.98",
"total_weight": 0,
"total_tax": "0.00",
"taxes_included": false,
"currency": "GBP",
"financial_status": "pending",
"confirmed": true,
"total_discounts": "0.00",
"total_line_items_price": "13.98",
"cart_token": null,
"buyer_accepts_marketing": false,
"name": "#MW1052",
"referring_site": null,
"landing_site": null,
"cancelled_at": null,
"cancel_reason": null,
"total_price_usd": "18.00",
"checkout_token": null,
"reference": null,
"user_id": 1706983449,
"location_id": null,
"source_identifier": null,
"source_url": null,
"processed_at": "2018-08-10T05:03:36+01:00",
"device_id": null,
"phone": null,
"customer_locale": null,
"app_id": 1354745,
"browser_ip": null,
"landing_site_ref": null,
"order_number": 1052,
"discount_applications": [],
"discount_codes": [],
"note_attributes": [],
"payment_gateway_names": [
"manual"
],
"processing_method": "manual",
"checkout_id": null,
"source_name": "shopify_draft_order",
"fulfillment_status": null,
"tax_lines": [],
"tags": "",
"contact_email": "email@gmail.com",
"order_status_url": "https://checkout.shopify.com/1245839385/orders/f4877048c08eb98180ee5fda34f978bc/authenticate?key=redacted",
"admin_graphql_api_id": "gid://shopify/Order/redacted",
"line_items": [
{
"id": 1350736445494,
"variant_id": 8725905539126,
"title": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt",
"quantity": 1,
"price": "6.99",
"sku": "ss15",
"variant_title": "S / Bottle Green",
"vendor": "Fruit Of The Loom",
"fulfillment_service": "manual",
"product_id": 719146287158,
"requires_shipping": true,
"taxable": false,
"gift_card": false,
"name": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt - S / Bottle Green",
"variant_inventory_management": "shopify",
"properties": [],
"product_exists": true,
"fulfillable_quantity": 1,
"grams": 0,
"total_discount": "0.00",
"fulfillment_status": null,
"discount_allocations": [],
"admin_graphql_api_id": "gid://shopify/LineItem/1350736445494",
"tax_lines": [
{
"title": "VAT",
"price": "0.00",
"rate": 0.2
}
]
},
{
"id": 1350736478262,
"variant_id": 8725905440822,
"title": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt",
"quantity": 1,
"price": "6.99",
"sku": "ss12",
"variant_title": "S / Heather Grey",
"vendor": "Fruit Of The Loom",
"fulfillment_service": "manual",
"product_id": 719146287158,
"requires_shipping": true,
"taxable": false,
"gift_card": false,
"name": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt - S / Heather Grey",
"variant_inventory_management": "shopify",
"properties": [],
"product_exists": true,
"fulfillable_quantity": 1,
"grams": 0,
"total_discount": "0.00",
"fulfillment_status": null,
"discount_allocations": [],
"admin_graphql_api_id": "gid://shopify/LineItem/1350736478262",
"tax_lines": [
{
"title": "VAT",
"price": "0.00",
"rate": 0.2
}
]
}
],
"shipping_lines": [],
"billing_address": {
"first_name": "John",
"address1": "17A Oaklands Business Centre",
"phone": null,
"city": "Worthing",
"zip": "BN11 5LH",
"province": null,
"country": "United Kingdom",
"last_name": "Doe",
"address2": "Elm Grove",
"company": null,
"latitude": 50.8162744,
"longitude": -0.4010653,
"name": "Jogn Doe",
"country_code": "GB",
"province_code": null
},
"shipping_address": {
"first_name": "John",
"address1": "17A Oaklands Business Centre",
"phone": null,
"city": "Worthing",
"zip": "BN11 5LH",
"province": null,
"country": "United Kingdom",
"last_name": "Doe",
"address2": "Elm Grove",
"company": null,
"latitude": 50.8162744,
"longitude": -0.4010653,
"name": "John Doe",
"country_code": "GB",
"province_code": null
},
"fulfillments": [],
"refunds": [],
"customer": {
"id": 556974014518,
"email": "email@gmail.com",
"accepts_marketing": false,
"created_at": "2018-06-26T00:26:55+01:00",
"updated_at": "2018-08-10T05:03:36+01:00",
"first_name": "John",
"last_name": "Doe",
"orders_count": 22,
"state": "enabled",
"total_spent": "0.00",
"last_order_id": 533078016054,
"note": null,
"verified_email": true,
"multipass_identifier": null,
"tax_exempt": false,
"phone": null,
"tags": "",
"last_order_name": "#MW1052",
"admin_graphql_api_id": "gid://shopify/Customer/556974014518",
"default_address": {
"id": 601657278518,
"customer_id": 556974014518,
"first_name": "John",
"last_name": "Doe",
"company": null,
"address1": "17A Oaklands Business Centre",
"address2": "Elm Grove",
"city": "Worthing",
"province": null,
"country": "United Kingdom",
"zip": "BN11 5LH",
"phone": null,
"name": "John Doe",
"province_code": null,
"country_code": "GB",
"country_name": "United Kingdom",
"default": true
}
}
},
{
"id": 532977778742,
"email": "james@bungeedesign.com",
"closed_at": null,
"created_at": "2018-08-09T22:18:53+01:00",
"updated_at": "2018-08-09T22:18:53+01:00",
"number": 51,
"note": "",
"token": "a292d75bd7011cf255a1bf236b23d0a5",
"gateway": "manual",
"test": false,
"total_price": "6.99",
"subtotal_price": "6.99",
"total_weight": 0,
"total_tax": "0.00",
"taxes_included": false,
"currency": "GBP",
"financial_status": "pending",
"confirmed": true,
"total_discounts": "0.00",
"total_line_items_price": "6.99",
"cart_token": null,
"buyer_accepts_marketing": true,
"name": "#MW1051",
"referring_site": null,
"landing_site": null,
"cancelled_at": null,
"cancel_reason": null,
"total_price_usd": "9.00",
"checkout_token": null,
"reference": null,
"user_id": 1706983449,
"location_id": 1327759385,
"source_identifier": null,
"source_url": null,
"processed_at": "2018-08-09T22:18:53+01:00",
"device_id": null,
"phone": null,
"customer_locale": null,
"app_id": 1354745,
"browser_ip": null,
"landing_site_ref": null,
"order_number": 1051,
"discount_applications": [],
"discount_codes": [],
"note_attributes": [],
"payment_gateway_names": [
"manual"
],
"processing_method": "manual",
"checkout_id": null,
"source_name": "shopify_draft_order",
"fulfillment_status": null,
"tax_lines": [],
"tags": "",
"contact_email": "james@bungeedesign.com",
"order_status_url": "https://checkout.shopify.com/1245839385/orders/a292d75bd7011cf255a1bf236b23d0a5/authenticate?key=9322877ce6ce34be2feeb127d73d0f89",
"admin_graphql_api_id": "gid://shopify/Order/532977778742",
"line_items": [
{
"id": 1350552453174,
"variant_id": 8725905408054,
"title": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt",
"quantity": 1,
"price": "6.99",
"sku": "ss11",
"variant_title": "S / Black",
"vendor": "Fruit Of The Loom",
"fulfillment_service": "manual",
"product_id": 719146287158,
"requires_shipping": true,
"taxable": false,
"gift_card": false,
"name": "Fruit of the Loom Poly/Cotton Piqué Polo Shirt - S / Black",
"variant_inventory_management": "shopify",
"properties": [],
"product_exists": true,
"fulfillable_quantity": 1,
"grams": 0,
"total_discount": "0.00",
"fulfillment_status": null,
"discount_allocations": [],
"admin_graphql_api_id": "gid://shopify/LineItem/1350552453174",
"tax_lines": [
{
"title": "VAT",
"price": "0.00",
"rate": 0.2
}
]
}
],
"shipping_lines": [],
"fulfillments": [],
"refunds": [],
"customer": {
"id": 552537620534,
"email": "james@bungeedesign.com",
"accepts_marketing": true,
"created_at": "2018-06-15T10:44:13+01:00",
"updated_at": "2018-08-09T22:18:53+01:00",
"first_name": "James",
"last_name": "Rogers",
"orders_count": 18,
"state": "enabled",
"total_spent": "0.00",
"last_order_id": 532977778742,
"note": null,
"verified_email": true,
"multipass_identifier": null,
"tax_exempt": false,
"phone": null,
"tags": "password page, prospect",
"last_order_name": "#MW1051",
"admin_graphql_api_id": "gid://shopify/Customer/552537620534"
}
}
]
};
for (let i = 0; i < json.orders.length; i++) {
const order = json.orders[i];
console.log(order.customer.id);
}