小编khu*_*lam的帖子

我的项目运行完美，但是当我实现通用时，我得到“窗口未定义”。

我的错误如下。

 node_modules/hammerjs/hammer.js:2643

 })(window, document, 'Hammer');

      ^
  ReferenceError: window is not defined
     at Object.<anonymous> (/var/www/html/resumeble_unv/node_modules/hammerjs  /hammer.js:2643:4) 

      at Module._compile (module.js:571:32)
      at Object.Module._extensions..js (module.js:580:10)
      at Module.load (module.js:488:32)
      at tryModuleLoad (module.js:447:12)
     at Function.Module._load (module.js:439:3)
     at Module.require (module.js:498:17)
     at require (internal/module.js:20:19)
     at node_modules/ngx-carousel/bundles /ngxcarousel.umd.js:2:174
    at Object.<anonymous> (node_modules/ngx-carousel/bundles/ngxcarousel.umd.js:5:2)

包.json

  { 
  "name": "resumable-ang",

  "version": "0.0.0",

  "license": "MIT",

  "scripts": {
   "prestart": "ng build --prod && ngc",
    "start": "ts-node src/server.ts" },

   "private": true,
  "dependencies": {

  "@angular/animations": "^4.4.6",
  "@angular/common": "^4.0.0",
  "@angular/compiler": "^4.0.0",
  "@angular/core": "^4.0.0",
 "@angular/forms": "^4.0.0",
  "@angular/http": "^4.0.0",
  "@angular/platform-browser": …

在下面的代码中，我得到的Cannot read property 'http' of undefined是未定义的。如何在 onAuthorize 函数中调用外部自定义函数。

这是我获得帮助的链接https://developer.paypal.com/demo/checkout/#/pattern/client 您的任何帮助都将是可观的。

ngAfterViewInit(): void {
    const total = this.total_amount;
    const selected_package = this.selected_package.name;
    this.loadExternalScript('https://www.paypalobjects.com/api/checkout.js').then(() => {
        paypal.Button.render({
            env: 'sandbox',
            client: {
                production: '',
                sandbox: 'XXXXXXXXXXXXXXXXXXXXXXX'
            },
            commit: true,
            payment: function (data, actions) {
                return actions.payment.create({
                    payment: {
                        transactions: [
                            {
                                amount: { total: total, currency: 'USD' },
                                description: selected_package,
                            }
                        ]
                    }
                })
            },
            onAuthorize: function (data, actions) {
                return actions.payment.execute().then(function (payment) {
                    const formdata: FormData = new FormData; …