这里的Javascript新手:)我想要实现......但无法弄清楚。
这是我的数据。
<pre>
[
[
{
"id": 2759178563,
"title": "Ergonomic Paper Computer",
"handle": "ergonomic-paper-computer",
"body_html": "Enable turn-key infrastructures",
"published_at": "2015-09-23T20:51:49-04:00",
"created_at": "2015-09-23T20:51:49-04:00",
"updated_at": "2015-09-23T20:51:49-04:00",
"vendor": "Schinner Inc",
"product_type": "Computer",
"tags": [
"Computer",
"Ergonomic",
"Paper"
],
"variants": [
{
"id": 8041863299,
"title": "White",
"option1": "White",
"option2": null,
"option3": null,
"price": "67.25",
"grams": 5145,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 1,
"product_id": 2759178563,
"created_at": "2015-09-23T20:51:49-04:00",
"updated_at": "2015-09-23T20:51:49-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041863363,
"title": "Mint green",
"option1": "Mint green",
"option2": null,
"option3": null,
"price": "29.58",
"grams": 6860,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 2,
"product_id": 2759178563,
"created_at": "2015-09-23T20:51:49-04:00",
"updated_at": "2015-09-23T20:51:49-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041863491,
"title": "Yellow",
"option1": "Yellow",
"option2": null,
"option3": null,
"price": "54.19",
"grams": 6045,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 3,
"product_id": 2759178563,
"created_at": "2015-09-23T20:51:49-04:00",
"updated_at": "2015-09-23T20:51:49-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041863555,
"title": "Blue",
"option1": "Blue",
"option2": null,
"option3": null,
"price": "22.88",
"grams": 9526,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 4,
"product_id": 2759178563,
"created_at": "2015-09-23T20:51:49-04:00",
"updated_at": "2015-09-23T20:51:49-04:00",
"available": true,
"featured_image": null
}
],
"images": [
{
"id": 5642046019,
"created_at": "2015-09-23T20:51:49-04:00",
"position": 1,
"updated_at": "2015-09-23T20:51:49-04:00",
"product_id": 2759178563,
"variant_ids": [],
"src": "https://cdn.shopify.com/s/files/1/1000/7970/products/Ergonomic_20Paper_20Computer.png?v=1443055909"
}
],
"options": [
{
"name": "Title",
"position": 1,
"values": [
"White",
"Mint green",
"Yellow",
"Blue"
]
}
]
},
{
"id": 2759192387,
"title": "Heavy Duty Concrete Keyboard",
"handle": "heavy-duty-concrete-keyboard",
"body_html": "Strategize synergistic e-markets",
"published_at": "2015-09-23T20:52:07-04:00",
"created_at": "2015-09-23T20:52:07-04:00",
"updated_at": "2015-09-23T20:52:07-04:00",
"vendor": "Stiedemann and Sons",
"product_type": "Keyboard",
"tags": [
"Concrete",
"Duty",
"Heavy",
"Keyboard"
],
"variants": [
{
"id": 8041883779,
"title": "Magenta",
"option1": "Magenta",
"option2": null,
"option3": null,
"price": "14.20",
"grams": 3030,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 1,
"product_id": 2759192387,
"created_at": "2015-09-23T20:52:07-04:00",
"updated_at": "2015-09-23T20:52:07-04:00",
"available": true,
"featured_image": null
}
],
"images": [
{
"id": 5642056899,
"created_at": "2015-09-23T20:52:07-04:00",
"position": 1,
"updated_at": "2015-09-23T20:52:07-04:00",
"product_id": 2759192387,
"variant_ids": [],
"src": "https://cdn.shopify.com/s/files/1/1000/7970/products/Heavy_20Duty_20Concrete_20Keyboard.png?v=1443055927"
}
],
"options": [
{
"name": "Title",
"position": 1,
"values": [
"Magenta"
]
}
]
}
],
[
{
"id": 2759168323,
"title": "Awesome Cotton Computer",
"handle": "awesome-cotton-computer-1",
"body_html": "Brand synergistic applications",
"published_at": "2015-09-23T20:51:24-04:00",
"created_at": "2015-09-23T20:51:24-04:00",
"updated_at": "2015-09-23T20:51:24-04:00",
"vendor": "Hills Group",
"product_type": "Computer",
"tags": [
"Awesome",
"Computer",
"Cotton"
],
"variants": [
{
"id": 8041841795,
"title": "Black",
"option1": "Black",
"option2": null,
"option3": null,
"price": "2.05",
"grams": 1906,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 1,
"product_id": 2759168323,
"created_at": "2015-09-23T20:51:24-04:00",
"updated_at": "2015-09-23T20:51:24-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041841859,
"title": "Orchid",
"option1": "Orchid",
"option2": null,
"option3": null,
"price": "10.78",
"grams": 4970,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 2,
"product_id": 2759168323,
"created_at": "2015-09-23T20:51:24-04:00",
"updated_at": "2015-09-23T20:51:24-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041841923,
"title": "Tan",
"option1": "Tan",
"option2": null,
"option3": null,
"price": "50.54",
"grams": 6738,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 3,
"product_id": 2759168323,
"created_at": "2015-09-23T20:51:24-04:00",
"updated_at": "2015-09-23T20:51:24-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041841987,
"title": "Teal",
"option1": "Teal",
"option2": null,
"option3": null,
"price": "91.51",
"grams": 8718,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 4,
"product_id": 2759168323,
"created_at": "2015-09-23T20:51:24-04:00",
"updated_at": "2015-09-23T20:51:24-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041842051,
"title": "Gold",
"option1": "Gold",
"option2": null,
"option3": null,
"price": "8.24",
"grams": 194,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 5,
"product_id": 2759168323,
"created_at": "2015-09-23T20:51:24-04:00",
"updated_at": "2015-09-23T20:51:24-04:00",
"available": true,
"featured_image": null
}
],
"images": [
{
"id": 5642032131,
"created_at": "2015-09-23T20:51:24-04:00",
"position": 1,
"updated_at": "2015-09-23T20:51:24-04:00",
"product_id": 2759168323,
"variant_ids": [],
"src": "https://cdn.shopify.com/s/files/1/1000/7970/products/Awesome_20Cotton_20Computer_f74fc2a4-efa5-42ca-a3b2-36c378f1c003.png?v=1443055884"
}
],
"options": [
{
"name": "Title",
"position": 1,
"values": [
"Black",
"Orchid",
"Tan",
"Teal",
"Gold"
]
}
]
},
{
"id": 2759192387,
"title": "Heavy Duty Concrete Keyboard",
"handle": "heavy-duty-concrete-keyboard",
"body_html": "Strategize synergistic e-markets",
"published_at": "2015-09-23T20:52:07-04:00",
"created_at": "2015-09-23T20:52:07-04:00",
"updated_at": "2015-09-23T20:52:07-04:00",
"vendor": "Stiedemann and Sons",
"product_type": "Keyboard",
"tags": [
"Concrete",
"Duty",
"Heavy",
"Keyboard"
],
"variants": [
{
"id": 8041883779,
"title": "Magenta",
"option1": "Magenta",
"option2": null,
"option3": null,
"price": "14.20",
"grams": 3030,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 1,
"product_id": 2759192387,
"created_at": "2015-09-23T20:52:07-04:00",
"updated_at": "2015-09-23T20:52:07-04:00",
"available": true,
"featured_image": null
}
],
"images": [
{
"id": 5642056899,
"created_at": "2015-09-23T20:52:07-04:00",
"position": 1,
"updated_at": "2015-09-23T20:52:07-04:00",
"product_id": 2759192387,
"variant_ids": [],
"src": "https://cdn.shopify.com/s/files/1/1000/7970/products/Heavy_20Duty_20Concrete_20Keyboard.png?v=1443055927"
}
],
"options": [
{
"name": "Title",
"position": 1,
"values": [
"Magenta"
]
}
]
}
],
[
{
"id": 2759167747,
"title": "Awesome Bronze Computer",
"handle": "awesome-bronze-computer",
"body_html": "Orchestrate holistic web services",
"published_at": "2015-09-23T20:51:20-04:00",
"created_at": "2015-09-23T20:51:20-04:00",
"updated_at": "2015-09-23T20:51:20-04:00",
"vendor": "Zboncak-Kemmer",
"product_type": "Computer",
"tags": [
"Awesome",
"Bronze",
"Computer"
],
"variants": [
{
"id": 8041840195,
"title": "Magenta",
"option1": "Magenta",
"option2": null,
"option3": null,
"price": "56.69",
"grams": 6035,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 1,
"product_id": 2759167747,
"created_at": "2015-09-23T20:51:20-04:00",
"updated_at": "2015-09-23T20:51:20-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041840259,
"title": "Mint green",
"option1": "Mint green",
"option2": null,
"option3": null,
"price": "63.89",
"grams": 9961,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 2,
"product_id": 2759167747,
"created_at": "2015-09-23T20:51:20-04:00",
"updated_at": "2015-09-23T20:51:20-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041840323,
"title": "Maroon",
"option1": "Maroon",
"option2": null,
"option3": null,
"price": "18.76",
"grams": 922,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 3,
"product_id": 2759167747,
"created_at": "2015-09-23T20:51:20-04:00",
"updated_at": "2015-09-23T20:51:20-04:00",
"available": true,
"featured_image": null
},
{
"id": 8041840387,
"title": "Salmon",
"option1": "Salmon",
"option2": null,
"option3": null,
"price": "97.60",
"grams": 1355,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 4,
"product_id": 2759167747,
"created_at": "2015-09-23T20:51:20-04:00",
"updated_at": "2015-09-23T20:51:20-04:00",
"available": true,
"featured_image": null
}
],
"images": [
{
"id": 5642031235,
"created_at": "2015-09-23T20:51:20-04:00",
"position": 1,
"updated_at": "2015-09-23T20:51:20-04:00",
"product_id": 2759167747,
"variant_ids": [],
"src": "https://cdn.shopify.com/s/files/1/1000/7970/products/Awesome_20Bronze_20Computer.png?v=1443055880"
}
],
"options": [
{
"name": "Title",
"position": 1,
"values": [
"Magenta",
"Mint green",
"Maroon",
"Salmon"
]
}
]
},
{
"id": 2759192387,
"title": "Heavy Duty Concrete Keyboard",
"handle": "heavy-duty-concrete-keyboard",
"body_html": "Strategize synergistic e-markets",
"published_at": "2015-09-23T20:52:07-04:00",
"created_at": "2015-09-23T20:52:07-04:00",
"updated_at": "2015-09-23T20:52:07-04:00",
"vendor": "Stiedemann and Sons",
"product_type": "Keyboard",
"tags": [
"Concrete",
"Duty",
"Heavy",
"Keyboard"
],
"variants": [
{
"id": 8041883779,
"title": "Magenta",
"option1": "Magenta",
"option2": null,
"option3": null,
"price": "14.20",
"grams": 3030,
"compare_at_price": null,
"sku": "",
"requires_shipping": true,
"taxable": true,
"position": 1,
"product_id": 2759192387,
"created_at": "2015-09-23T20:52:07-04:00",
"updated_at": "2015-09-23T20:52:07-04:00",
"available": true,
"featured_image": null
}
],
"images": [
{
"id": 5642056899,
"created_at": "2015-09-23T20:52:07-04:00",
"position": 1,
"updated_at": "2015-09-23T20:52:07-04:00",
"product_id": 2759192387,
"variant_ids": [],
"src": "https://cdn.shopify.com/s/files/1/1000/7970/products/Heavy_20Duty_20Concrete_20Keyboard.png?v=1443055927"
}
],
"options": [
{
"name": "Title",
"position": 1,
"values": [
"Magenta"
]
}
]
}
]
]
</pre>
这是我的代码：
import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
@Injectable()
export class ShopifyService {
/**
* Initialization
*/
constructor (
private http: Http
) {}
private shopifyUrl = 'app/heroes.json';
errorMessage: string;
/**
* Private Methods
*/
fetchProducts(): Promise<Response> {
return this.http.get(this.shopifyUrl)
.toPromise()
.then(this.extractData)
.catch(this.handleError);
}
private extractData(res: Response) {
if (res.status < 200 || res.status >= 300) {
throw new Error('Bad response status: ' + res.status);
}
let body = res.json();
if (body.data) {
return body.data;
}
else if (body.products) {
return body.products;
}
else {
return { };
}
}
private handleError (error: any) {
let errMsg = error.message || 'Server error';
console.error(errMsg);
return Promise.reject(errMsg);
}
private filterProducts(list, archetype) {
var result = [];
for (var i = 0; i < list.length; i++) {
if (list[i].product_type === archetype) {
result.push(list[i]);
}
}
return result;
}
/**
* Public Methods
*/
public findProducts(archetypes) {
return this.fetchProducts().then(
products => {
var result = [],
fetchedResponse = [];
for (var i = 0; i < archetypes.length; i++) {
fetchedResponse = this.filterProducts(
products, archetypes[i]
);
result = result.concat(fetchedResponse);
}
return result;
},
error => this.errorMessage = <any>error
)
}
public findSingleProductVariant() {
var result = [],
j = 0;
return this.findVariants().then(
product => {
for (var i = 0; i < product.length; i++) {
// console.log(product[i]);
}
}
);
// return result;
}
findVariants() {
return this.findProducts(['Computer', 'Keyboard']).then(
products => {
var result = [];
for (var i = 0; i < products.length; i++) {
if (products[i].product_type === 'Computer') {
for (var j = 0; j < products.length; j++) {
if (products[j].product_type === 'Keyboard') {
result.push([products[i], products[j]]);
}
}
}
}
console.log(result);
return result;
}
)
}
}
直到这里，我得到了一半的东西。一组二维数组（其中一个来自键盘类型，另一个来自计算机类型）。
就像这样==＆gt;
[
[
[Computer_A],
[Keyboard_A]
],
[
[Computer_B],
[Keyboard_A]
],
[
[Computer_C],
[Keyboard_A]
],
]
现在，这些对象中的每一个都有自己的变体数组。我必须修改我的findSingleProductVariant才能浏览这些数组中的每一个，选择一个keyboard变体（其数组有一个价格字段），同时选择一个computer变量并计算价格。如果价格低于1000，它可以继续选择另一个键盘和计算机。但问题是它不能有两个相同的阵列。例如，我们不能这样。
[
['Computer_A'], ['Keyboard_A'],
['Computer_A'], ['Keyboard_A'],
]
答案 0 :(得分：-1)
这里的关键是你不能直接比较对象并期望相关结果，例如
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewControllerWithIdentifier(storyboardId)
vc.title = storyboardId
let navigationController = UINavigationController(rootViewController: vc)
self.presentViewController(navigationController, animated: false, completion: nil)
将返回false（['Red Lamp', 'Blue Table'] === ['Red Lamp', 'Blue Table']
也不会按预期工作，因为它使用了严格的比较）。
因此，对于数组数组，您必须使用两个嵌套循环来比较原始值。