Simple DOM-less

...window.addEventListener('error', function(event) { console.log("Got an uncaught error: ", event.error) }) Tip Testing tools like Jasmine might also listen to the error event and fail your test if any uncaught exception...

...is observed. In Jasmine you may use jasmine.spyOnGlobalErrorsAsync() to make assertions on the unhandled error...

...isDeepStrictEqual([1, 2], [1, 2]) // => true To compare two arrays for equality in a Jasmine spec assertion, see Jasmine: Testing complex types for equality...

...ecmaVersion to at least 13. Static class fields are supported in all relevant browsers. Jasmine spec This Jasmine spec goes along with the code above: import Duration from './duration'

webpack is a very powerful asset bundler written in node.js to bundle (ES6) JavaScript modules, stylesheets, images, and other assets...

Code splitting is a feature of esbuild that can keep huge libraries out of the main bundle. How code splitting...

...a lot of files for which you want to disable a specific rule, e.g. Jasmine specs, you could use overrides in your eslint.config.mjs: overrides: [ { files: ['app/webpack/backend/index.js', 'app/webpack/frontend/index.js'], rules: { 'import/first': ['error...

callFooWhenLoaded().then(function() { expect(foo).toHaveBeenCalled() }) }) }) However, this test breaks your test runner! Jasmine thinks your test is over too soon. Finally, here is the correct test. Notice the...

...you mix Rails Assets with other ways of obtaining Javascript. E. g. if you install jasmine-rails (through Rubygems) it will provide the Jasmine library to your asset pipeline.

...rails-assets-jasmine and does not realize that the Jasmine dependency was already satisfied through jasmine-rails...

...tab link is clicked, the -active class switches to the clicked link. In a Jasmine spec I wanted to test this behaviour. Unpoly's up.hello emits an up:fragment:inserted...

...asynchronously in the next microtask. Usage example: Tests Note Since this card was written Jasmine has implemented asynchronous matchers that let you expect a promise's state.

...native DOM elements, use is: var $a = $('body'); var $b = $('body'); $a.is($b); // true Jasmine equality matcher for jQuery See here for a custom Jasmine matcher that tests if two...

objekt[key] = @write(objekt[key], keys[1...]..., value) objekt else objekt = value Jasmine-Spec describe 'NestedHash', -> describe '.write()', -> it 'writes nested values to a hash', -> hash = {} NestedHash.write...

This error occurs when passing an object instead of a string to Jasmine's describe(): # Bad describe(HoverClass, function() {...

# Correct describe('HoverClass', function...

...variable that is hidden behind a closure, or to mock a private method using Jasmine spies. You can use the attached Knife helper to punch a hole into your closure...

This jasmine plugin helps with testing DOM manipulation in two ways: It gives you DOM-related matchers like toBeVisible() or toHaveCss(css) It gives you a function to load HTML...

Run your Jasmine specs without a browser