Web19 mag 2024 · 1 Answer Sorted by: 7 More than likely, your UserService class has other dependencies and as such, Nest cannot instantiate the UserService class. When you are trying to do userService = module.get (UserService) you are retrieving an undefined hence the error about jest.spyOn (). WebTo render an element with html2canvas, simply call: html2canvas (element [, options]); The function returns a Promise containing the element. Simply add a promise fulfillment handler to the promise using then: html2canvas (document.body).then (function (canvas) { document.body.appendChild (canvas); }); Building

GitHub - niklasvh/html2canvas: Screenshots with JavaScript

I wrote an example for unit-testing canvas and other image-y types with Jasmine and js-imagediff. Jasmine Canvas Unit Testing. I find this to be better than making sure specific methods on a mock Canvas have been invoked because different series of methods may produce the same method. WebScreenshots with JavaScript. Contribute to niklasvh/html2canvas development by creating an account on GitHub. offre welcome boursorama

hustcc/jest-canvas-mock: A module used to mock canvas …

WebHTML2CANVAS Take Screenshots Of Certain Div and Images using HTML2CANVAS Coding TV 5.6K views 2 years ago Pixel Effects with JavaScript and HTML Canvas - Tutorial freeCodeCamp.org 201K views... Webhtml2canvas 的作用就是允许让我们直接在用户浏览器上拍摄网页或其部分的“截图”。 它的屏幕截图是基于 DOM 的，因此可能不会 100% 精确到真实的表示，因为它不会生成实际的屏幕截图，而是基于 页面上可用的信息 构建屏幕截图。 html2canvas 可以用来做什么 从上的面的介绍可以知道， html2canvas 的作用就是根据 DOM 生成对应的图片，所以一个比 … WebTest your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor. offre welcome boursorama banque