...scrolling. This frees the browser up to respond to scrolling immediately without waiting for JavaScript, thus ensuring a reliably smooth scrolling experience for the user. elem.addEventListener('touchstart', fn, { passive: true...
...markdown from user input, an attacker might be able to use this to inject javascript code into the source code of your page. The linked github page is a collection...
...common markdown XSS payloads which is handy for writing tests. Producing arbitrary links: [Basic](javascript:alert('Basic')) [Local Storage](javascript:alert(JSON.stringify(localStorage))) [CaseInsensitive](JaVaScRiPt:alert('CaseInsensitive')) [URL](javascript://www.google.com...
...are not written to input fields with fill_in. A workaround is to use javascript / jquery to change the contents of an input field. Use the following code or add...
...unknown reasons. field = find_field(locator) id = field[:id].presence if id execute_script <<~JAVASCRIPT var field = document.querySelector('##{id}'); field.value = #{text.to_json}; field.dispatchEvent(new Event('input')); field.dispatchEvent(new Event('change...
...modernen Webapplikationen bestehen. Außerdem weißt du für was welcher Baustein da ist: HTML CSS Javascript (Browser, Frontend) "Backend" Applikation Du verstehst warum HTTP ein "stateless Protocol" ist.
...gem 'jsbundling-rails' group :development, :test do gem 'foreman' # ... end bundle install run bin/rails javascript:install:esbuild in a console to prepare esbuild. run yarn install to install all packages...
...assets:clobber to remove the precompiled assets again. adapt your stylesheet_link_tag and javascript_link_tag to match the new pack names. start the development server with the command...
Collection of useful tools in the Chrome JavaScript console. Make the whole page editable This is not special to Chrome, but still a clever thing: document.body.contentEditable=true Taking time
...are a simple animation framework that is built right into browsers. No need for Javascript here. They're supported by all browsers. Basic usage Transitions are used to animate the...
...security vulnerabilities. The dependencies of your apps are Ruby, Rails, all other gems and JavaScript libraries. Find out what a CVE advisory is. Understand how we're dealing with security...
...to livereload-js match[1] end watch(%r(^app/assets/.*\.js$)) do |_match| # Any source Javascript changed. Assume the next changes in public/assets refer to JS. last_js_change = Time.now
port: 35729, } Finally, require this new entrypoint in your layout with - if Rails.env.development? = javascript_include_tag 'dev', nonce: true (skip the nonce, if you do not have a CSP...
...using unicode escape sequences: escapeHighASCII('{"foo":"xäy"}') // => '{"foo":"x\\u00e4y"}' Escaping high ASCII in JavaScript function escapeHighASCII(string) { let unicodeEscape = (char) => "\\u" + char.charCodeAt(0).toString(16).padStart(4, '0')
...query parameter ordering 1 URI ignoring query parameter ordering 2 Tests with AJAX Using javascript in integration tests might cause issues that AJAX requests are not recorded or bleed in...
...called a consent management platform (CMP). Your website will load this CMP via a JavaScript tag which will then directly render the form. The form will show the user detailed...
...See https://www.consentstringdecoder.com/ for an example string. The CMP will even inject a standardized JavaScript function called __tcfapi into your website. This can be used by any other third-party...
...to this element. Example DOM Breakpoints can be quite useful to quickly find the JavaScript that is responsible for some (unexpected) behavior. You can use DOM Breakpoints for debugging subtree...
...or node removal. Here you can see a very simple example that shows what JavaScript lines are responsible for a text change (subtree modification): You can use this Code Pen...
Resources RubyGuides: Mastering Ruby Regular Expressions Using regular expressions in JavaScript Testing regular expressions visually Regular Expressions: Quantifier modes Ruby: You can nest regular expressions Matching line feeds with...
All major browsers (IE8+, FF3.5+, Safari 4+, any Chrome) support sessionStorage, a JavaScript storage object that survives page reloads and browser restores, but is different per new tab/window (in contrast...
...from the toolbar. For that, you should listen to the trix-initialize event in javascript. addEventListener("trix-initialize", event => { const { toolbarElement } = event.target const textTools = toolbarElement.querySelector("[data-trix-button-group=text...
...focusable nor visible to screen readers. Alternatives If you're starting your transition from JavaScript, you can give the element the [inert] attribute. This will make the browser ignore input...
...Recovery Point Objective (RPO) & Recovery Time Objective (RTO) YAML ain't markup language (YAML) JavaScript Object Notation (JSON) Alles unter Cloud Computing 101 AWS Fundamentals Aufgaben Das ist mehr eine...
...starred / movie is unstarred) is rendered by the server or by the client (using JavaScript). Try not to duplicate rendering logic or persistance logic though. Is this a good way...
testing-library are widely used testing utilities libraries for javascript dependent frontend testing. The main utilities provided are query methods, user interactions, dom expectations and interacting with components of several...
...local development where you might still use http://. If you set any cookies from JavaScript, this isn't fixed by the middleware. Add this to lib/middleware/secure_cookies.rb: # On HTTPS requests, we...
...have many elements on our page. Clicking them should open a modal dialog. Vanilla JavaScript document.addEventListener('click', function(event) { if (event.target.closest('.dialog-link')) { // Open dialog } }); See Event delegation without jQuery...
...single-line texts. If you want to truncate tests across multiple lines, use a JavaScript solution like Superclamp. There is also -webkit-line-clamp which works only on Chrome.
...is never reached. Note that this is not quite the same as "hoisting" in JavaScript. The variable is not available in the whole block, just in lines after its declaration...