polyfill 12 events 8 custom-event 4 Web API Interface 4 react 3 MouseEvent 3 Node.prototype.firstElementChild 2 Node.prototype.children 2 NodeList.prototype.forEach 2 Event 2 Node.prototype.replaceWith 2 Node.prototype.remove 2 Node.prototype.after 2 Node.prototype.before 2 Node.prototype.prepend 2 Node.prototype.append 2 Node.prototype.addEventListener 2 String.prototype.trim 2 String.prototype.padEnd 2 String.prototype.padStart 2 String.prototype.endsWith 2 String.prototype.startsWith 2 String.prototype.repeat 2 String.prototype.includes 2 Array.prototype.reduce 2 Array.prototype.some 2 Array.prototype.includes 2 Array.prototype.findIndex 2 Array.prototype.find 2 event 2 js 2 EventEmitter 2 custom-events 2 promise 2 async 2 canvas 2 Generator 2 Proxy 2 Reflect 2 ESModule 2 Decorator 2 mdn 2 polyfills 2 Number.isNaN 2 Number.isInteger 2 HTMLCanvasElement.prototype.toBlob 2 Element.prototype.classList 2 Element.prototype.matches 2 Element.prototype.toggleAttribute 2 Element.prototype.closest 2 Function.prototype.bind 2 startsWith 2 repeat 2 reduce 2 some 2 includes 2 firstElementChild 2 findIndex 2 filter 2 fill 2 forEach 2 find 2 from 2 of 2 create 2 assign 2 event emitter 2 custom events 2 browser 2 Array.prototype.forEach 2 Array.prototype.filter 2 Array.prototype.fill 2 Array.from 2 Array.of 2 Object.values 2 Object.keys 2 Object.entries 2 Object.create 2 endsWith 2 Object.assign 2 toBlob 2 isNaN 2 isInteger 2 matches 2 bind 2 toggleAttribute 2 closest 2 css-snap-points 1 css 1 accessibility 1 vanillaJS 1 requestanimationframe 1 snapping points 1 scroll snap 1 css snap 1 mobile-friendly 1 lightweight 1 modular 1 efficient 1 eventsbus 1