小编Chr*_*ons的帖子

在尝试对API进行GET调用时,我遇到了Ionic 3的CORS问题.我正在使用Ionic本地服务器,在命令行中为live server运行ionic serve.

错误 否请求的资源上存在"Access-Control-Allow-Origin"标头.原产地" 的http://本地主机:8100 "因此不允许访问.

我尝试用代理设置更新"ionic.config.json",但似乎没有工作..

{
  "name": "projectLeagueApp",
  "app_id": "47182aef",
  "type": "ionic-angular",
  "integrations": {
    "cordova": {}
  },
  "proxies": [
    {
      "path":"/games",
      "proxyUrl": "https://api-2445582011268.apicast.io/games/"
    }
  ]
}

我的数据服务

import { Injectable } from '@angular/core';
import { Http, Headers, RequestOptions } from '@angular/http';
import 'rxjs/add/operator/map';


@Injectable()
export class DataProvider {

  headers = new Headers({'user-key': '1234567890123'});
  options = new RequestOptions ({headers: this.headers}); 
  limit: number = 50;

  constructor(public http: Http) {
    console.log('Hello DataProvider Provider');
  }

  getGames(genre, offset_num) {

    let genre_id …

ng4/typescript 的新手并且有一些困难。如何对数组中的项目求和？

添加 例如，它在行动中的样子的屏幕截图

        for (let card of this.cards) {
              for (let val of card.cards){
                if(val.value == "JACK"){
                  val.value = 10;
                }
                if (val.value == "QUEEN"){
                  val.value = 10;
                }
                if (val.value == "KING"){
                  val.value = 10;
                }
                if (val.value == "ACE"){
                  val.value = 10;
                }

                this.hand = Number(val.value) + Number(val.value); (I'm sure this is wrong)

             }
          }